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Rule of Seven

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Seven antagonists to defeat.

"The Norse had seven sleepers. The Blackfoot, seven stars. As a boy, I heard the legend of the seven bells. All these stories are the same."
Reginald Hargreeves, The Umbrella Academy (2019)

Right after three, seven is the most commonly used "meaningful" number in fiction. This can be traced back to the ancient times; just think of the Seven Wonders, the Seven Days of Creation, or the Seven Hills of Rome. It is also common in many fairy tales.

In the natural world, one of the origins of this significance comes from the seven celestial bodies that could be seen with the naked eye, (Sun, Moon, and the planets up to Saturnnote ), that were worshiped as deities, and the days named after them were the days of the week.

Later, natural phenomena were intentionally shoehorned into this "significant" number, for example the colors of the rainbow and the number of continents can be seven, depending on how you count them.


Since The Bible, especially the Book of Revelation, uses it repeatedly, seven became even more famous as a divine number, or as the number of perfection.

Lucky Seven is a subtrope about examples where it is considered a lucky number. Also see Magical Seventh Son, The Magnificent Seven Samurai, Seven Deadly Sins, and Seven Heavenly Virtues.


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    Anime & Manga 
  • Dragon Ball has the seven titular orbs which can summon a wish-granting divine dragon.
  • Seven Rainbow Crystals in the Sailor Moon anime.
  • Seven Celestial Warriors in Fushigi Yuugi.
  • One Piece:
    • The Shichibukai/Seven Warlords of the Sea, a group of 7 powerful pirates sanctioned by the World Government.
    • There were also seven Straw Hat Pirates for a considerable length of time (then they gained more crew members).
  • Naruto:
    • Seven Swordsmen of the Mist. Also, the ninja academy graduates each year are assigned to numbered squads. Guess which squad the main character ended up in.
    • The chapter where Hinata finally sincerely confesses her love to Naruto is Chapter 437 (4+3=7). The manga itself ends with the epilogue in Chapter 700, where Naruto is the Seventh Hokage and is Happily Married to Hinata. Their romance unfolds during the seventh Shippuden movie, The Last: Naruto the Movie. Also counts as Lucky Seven.
  • Nana uses this rather prominently: both of the main characters are named Nana (a Japanese reading for the number 7), and they share an apartment numbered 707. Subverted in that neither of the two main characters' names use the kanji for 7.
  • Diamond Cut Diamond's story starts off Seven Years after the in-universe show Esper Shounen was cancelled.
  • Fairy Tail:
    • All the dragons (except, apparently, the jerkass black dragon) disappeared seven years ago. On July Seventh of the year 777. Seven years later, Black Mage Zeref decides to end his exile, and the dragon Acnologia appears and assault the strongest member of Fairy Tail on Tenrou Island, who disappear for seven years. And then after the Grand Magic Games, Future Rogue brings seven dragons from the past, and seven Dragonslayer mages fight them. The final battle with the aforementioned jerkass black dragon involves seven Dragon Slayers fighting him.
    • Regarding the Grand Magic Games, after the disqualification of Raven Tail, seven teams participated until both Fairy Tail teams are combined into one in the second-to-last day. On the other hand, the eight teams were participating for seven different guilds.
  • Shuya Nanahara from Battle Royale, with the "Nana" in his last name meaning seven. Used to be nicknamed "Wild 7" when he played baseball, which is also the brand of cigarettes Shogo Kawada smokes.
  • Seven types of Dying Will Flames. Because of this, all important groups of people also come in sets of seven.
  • Yu-Gi-Oh!:
    • The seven Millennium Items in the original Yu-Gi-Oh!. Later subverted with the Millennium stone.
    • In Yu-Gi-Oh! GX, Johan's Crystal Beast monster spirits. When all 7 are gathered he can summon his ace monster Rainbow Dragon. (Its evil twin Rainbow Dark Dragon works in a similar fashion). Subverted with the Shadow Riders of which seem to have 7 yet later revealed to have their leader thus 8. On the other hand, there are seven keys necessary to unlock the Sacred Beasts, and those keys are held by seven Key Keepers.
    • Inverted in Yu-Gi-Oh! 5Ds, where Season 1 antagonists the Dark Signers and their signature monsters, the Earthbound Gods, number seven in all.
    • Yu-Gi-Oh! ZEXAL gives us the Seven Barian Emperors who wield the seven Over-Hundred Numbers. Subverted once Don Thousand comes with 2 more over hundred numbers.
    • And then there's Yu-Gi-Oh! SEVENS, where most of the setting is patterned around the number... six. It is, after all, the signature motif of the Goha Corporation. Seven is instead associated with our main characters, the new Rush Duel game they are trying to popularize even as Goha attempts to shut them down, and overall the Dawn of an Era.
  • Pokémon: Jirachi: Wish Maker: Wishing Star of the Seven Nights.
  • Saint Seiya has seven Odin Saints (each guarding one of the seven Sapphire Stones), as well as seven Marine Saints.
  • YuYu Hakusho has the anti-villainous seven espers, the seventh of which has seven personalities.
  • Nausicaä of the Valley of the Wind takes place 1000 years after the world was nearly destroyed by the God-Soldiers in the "Seven Days of Fire".
  • Though not all were revealed, both the 777 Tools of Demon World (which also uses the Rule of Three) and the 7 Weapons of the Demon Emperor from Majin Tantei Nougami Neuro.
  • In Magical Girl Lyrical Nanoha StrikerS, seven of twelve Numbers make a Heel–Face Turn. Ironically, Sette, the number VII among them, doesn't.
  • Father from Fullmetal Alchemist has seven Homunculi as his children. They are based of the Seven Deadly Sins.
  • The Seven Stakes of Purgatory from Umineko: When They Cry are also based of the Seven Deadly Sins.
  • The titular witches of Yamada-kun and the Seven Witches. Except that there have always been at least two separate groups of seven witches, making it fourteen, but still, the seven part counts for the first party of the story.
  • In Monster Rancher, the Searchers, the heroes seeking the Phoenix, were a group of seven.
  • In Digimon Adventure, there were originally seven Digidestined=/=Chosen Children, then they gained a Sixth Ranger.
  • In Made in Abyss, the titular Abyss is divided in seven layers, each more twisted and dangerous than the last.
  • As a direct consequence to "Snow White", seven Leafe Knights in Prétear
  • Symphogear: This is the key to defeating the Mad God Shem-Ha, and rewriting her divine will. Carol is able to substitute for a 7th wielder during one battle, while Miku takes her place as the true 7th wielder by using Shen Shou Jing for the final battle.
  • The Level 5 Espers from A Certain Magical Index and A Certain Scientific Railgun. Only seven people from an entire city have achieved this rank. Although one of the Level 5 hasn't official debut yet.
  • Gjallarhorn in Mobile Suit Gundam: Iron-Blooded Orphans is ruled by a council of the seven descendants of the families who originally formed the organization. Although by the time we see them, they only have six members, the seventh died of an unspecified illness offscreen and his successor died in battle against Tekkadan as a result of another Gjallarhorn member's machinations for power.

    Asian Animation 
  • In Pleasant Goat and Big Big Wolf, Wolffy's relatives Darker, Worley, Wonky, Rolly, Raoul, Wizard, and Wolfram form a group known as the Seven Evil Wolves who help Wolffy in certain situations where he needs the assistance.


    Comic Books 
  • DC's Seven Soldiers of Victory, both in the Golden Age and in the anthology series by Grant Morrison. In Seven Soldiers #0, a team is assembled with only six members because one didn't show up. Dan the Dyno-mite remarks that the significance of the number 7 can't be overstated, especially since 6 is extremely unlucky in comparison. Then they all die.
  • Justice League of America:
    • The League's seven founding members: Superman, Batman, Wonder Woman, Green Lantern, The Flash, Aquaman and the Martian Manhunter. The League's roster has changed a lot over the years, but these guys were the first, and are thus considered the "Big Seven" for the DCU as a whole.
    • In JLA (1997), the original seven are reunited, except with Legacy Characters for the then-dead Green Lantern and Flash.
    • In Justice League (2011), Cyborg is now a founding member rather than the Martian Manhunter, but the number is still seven.
    • Grant Morrison also did a story arc titled "Synchronicity," where various occurrences resulting from a probability-altering machine including seven separate villains attacking Washington DC simultaneously to Martian Manhunter calling in the Atom because he was the seventh "new member" since the League's inception.
  • Warren Ellis often used this in his WildStorm work: the faux JLA in Stormwatch, the pulp era heroes in the first issue of Planetary (and the other faux JLA that they fight), and the members of The Authority (whose leader Lampshades the trope).
  • "The Seven" are the main superhero team in The Boys.
  • Scott Pilgrim: Seven Evil Exes. Gideon is especially fixated on the number 7 in The Movie, even stating after he swallows his gum that "It's gonna be in my digestive tract for SEVEN YEARS!"
  • The Mexican superhero Kalimán is The Seventh Descendant of the Seventh Dynasty of the goddess Kali, and must renew his vow to fight injustice every seven years.
  • The seven Endless from The Sandman; Destiny, Death, Dream, Destruction, Desire, Despair and Delirium.
  • The seven aspects of the emotional spectrum from 2000s-era Green Lantern, and the Lantern Corps that use each of them: red rage (Red Lantern Corps), orange avarice (Agent Orange), yellow fear (Sinestro Corps), green willpower (Green Lantern Corps), blue hope (Blue Lantern Corps), indigo compassion (Indigo Tribe), and violet love (Star Sapphires).
  • For some time, The Avengers were forced into a seven-member roster by the government. It's since become the average roster size.
  • In Blaze, seven is identified as a powerful mystical number that can hurt demons and undead beings.
  • In Supergirl story arc Death & the Family, Silver Banshee believes she can undo her curse if she assembles her clan's seven magical relics.
  • Tintin: The Seven Crystal Balls: Seven cursed explorers after uncovering an ancient Inca temple, seven crystal balls hurled at them and placing them in comas.

    Fairy Tales 

    Fan Works 
  • Played with in A Voice in the Wilderness. USS Bajor science officer Birail Riyannis observes that the Borg ziggurat's dimensions are in multiples of seven kilometers and that the number recurs in civilizations across the galaxy, but first officer Tess Phohl short-circuits her with the question of whether the Borg even use kilometers.
  • Hop to It has the seven Miraculouses and Kwamis created by Omega Labs, each suggested to be cloned from the canon Kwamis: Rabbit (equivalent to Ladybug), Dog (equivalent to Black Cat), Swan (equivalent to Butterfly), Chameleon (equivalent to Fox), Mantis, Dragonfly (equivalent to Peacock) and Firefly.
  • In Fialleril's Star Wars fics, seven is a sacred number in the Amavikka culture of Tatooine. This is the reason for the seven in the name of KD-7, Anakin's medic droid in Double Agent Vader.
  • In Infinity Train: Blossoming Trail. the Cage of Flauros ritual Walter wishes to enact on the Apex needs seven components. Walter even discusses this trope to his prisoner.

    Films — Live-Action 

  • Lone Wolf: In the backstory, Nyxator the Dragon created the seven Lorestones for the forces of Good. In mockery, Agarash the Damned created seven Doomstones.
  • The third Sorcery! adventure, The Seven Serpents, has the hero crossing the treacherous Baklands while being pursued by seven deadly, elemental serpents sent by the Archmage. They will encounter the serpents throughout the adventure, some (like the Air, Earth and Time Serpent) which are unavoidable, and at the end of the adventure their quest's performance is assessed by the number of serpents they've slain.


  • (NOTE: This joke comes from an earlier time when husbands did not go into the delivery room with their wives, but waited in a waiting room to be told the result of the birth. This was also before couples knew the gender of their babies before birth, or whether or not there was a multiple birth.) There are four men waiting in the maternity ward of a fancy private hospital that only rich people can afford. A nurse comes in, walks up to one of the men and says, "Congratulations! Your wife just gave birth to one healthy boy!" The man says, "What a coincidence! I'm the CEO of Capital One!" He goes off with the nurse to meet his wife and son. A few minutes later, another nurse comes in, walks up to another one of the men, and says, "Congratulations! Your wife just gave birth to twins!" The man says, "What a coincidence! I'm the business manager of the Minnesota Twins!" And he goes off with the nurse to meet his wife and twins. A few minutes later, another nurse comes in, goes up to one of the men, and says, "Congratulations! Your wife just gave birth to triplets!" The man says, "What a coincidence! I'm the CEO of Triple Crown!" And he goes off with the nurse to meet his wife and triplets. There is only one man left in the waiting room, and after awhile, he starts crying. A nurse comes in and asks him what's wrong. He replies, "I'm the CEO of 7-Up!"

  • The Adventures of Strong Vanya:
    • Vanya spends seven years lying on his home's stove, living off seven sacks of sunflower seeds and relying on seven sheepskin blankets to keep himself warm. After leaving his home, he travels through sevent countries and seven kingdoms during seven times seven weeks until he crosses the White Mountains.
    • Foma Drachensohn, the Stone Knight, is armed with three swords. The smallest of them weighs seven times seven Russian Poods (1 Pood=16,38 kgs). His second sword weighs seventy-seven Poods, and the third one weighs seven times seventy-seven Poods.
    • The old blind Tsar declared his daughter will only get married to the one who brings the armor of the Tsar Ivan Vasilievich. However, if no suitor succeeds in fulfilling the task in seven years and seven times seven weeks, the law states the Vasilissa must get married to her most distinguished suitor.
  • Book of Swords: The second volume of the series deals with the Seven Sealings of Benambra's Gold, which are: The hidden location of the treasure, the dragon guarding the entrance, a complex maze, a garrison of guards, a magical barrier, a demon bound to the grounds, and the greed of the thieves seeking to rob it.
  • A Christmas Carol: Jacob Marley has been dead for seven years (to the day) when the story begins.
  • The Chronicles of Narnia:
    • Seven volumes of the series itself, released over the course of seven years (1950, ‘51, ‘52, ‘53, ‘54, ‘55, ‘56).
    • Seven creatures are invited to The First Council by Aslan.
    • The Seven Brothers of Shuddering Wood - red dwarfs - immediately ally with Prince Caspian and provide him with armament.
    • Finding the Seven Lost Lords is the mission behind The Voyage of the Dawn Treader.
      • The titular ship stops in seven locations following the arrival of the Edmund, Lucy, and Eusatce.
    • The Seven Isles are an archipelago of the northeast coast of Narnia.
    • King Tirian (The Last Battle) is seventh in descent from King Rilian (The Silver Chair).
    • The Seven Friends of Narnia present in The Last Battle.
  • Deltora Quest: Has the seven tribes of Deltora and the seven gems of the belt of Deltora. The third cycle adds the seven dragons.
  • Discworld: Subverted; the most magical number is 8. Magic being a very dangerous thing to play with, there are a lot of superstitions around the number (some people insist on calling it "7a").
  • The Dresden Files: The Senior Council is composed of the seven most powerful Wizards in the world (although often there's a lot of politicking involved in choosing a new member). Additionally, there are Seven Laws of Magic (more like seven prohibitions on using it).
  • The Empirium Trilogy: There are seven Saints, each one representing one of the seven available elements.
  • Harry Potter:
    • Invoked by Voldemort, who planned on splitting his own soul into seven pieces — six Soul Jars plus the piece still in his body. Then he made Harry the seventh Horcrux without knowing it...
    • Seven books for seven years at Hogwarts.
    • Seven Weasley children.
    • Seven members on a Quidditch team.
    • Hogwarts has seven floors (plus the ground floor and the dungeons).
    • Seven challenges protecting the eponymous stone in Harry Potter and the Philosopher's Stone.
    • This would have culminated with book 7 being released on 7/7/07, but the bomb attacks on London the year before put a damper on that, so the publisher released it on the 21st (7+7+7) instead.
    • The magical age of majority is 17 rather than 18.
    • Harry Potter confronts Voldemort seven times in the series:
      • First, when he was a baby and Voldemort came to kill him.
      • Second is at the end of the first book, sharing Quirrel's body.
      • Then one year later against his Horcrux from the diary as it is coming to life.
      • Two years later, when Voldemort regains his physical form.
      • The following year again, in the Ministry of Magic.
      • At the start of book seven, when Harry and the Order are transporting him from the Dursley's.
      • And finally, at the end of the last book, when Harry gives himself away to Voldemort, which leads to their final showdown and Voldemort's defeat.
  • The Heroes of Olympus: Seven heroes for the Prophecy of the Seven in the series.
  • Illuminatus!: Averted, since the magic number is five. Characters spend some time discussing whether the Law of Fives is real, or an artifact of perception, or if there's a difference.
  • Keys to the Kingdom: Has seven Morrow Days who are Trustees of seven Parts of The Will which each represent one of the Seven Heavenly Virtues and wield seven magic Keys, who each hold jurisdiction over one of the seven days of the week and are in charge of one of the seven parts of The House and due to breaking their contracts, each suffer from one of the Seven Deadly Sins.
  • Little House on the Prairie: In The Long Winter, Pa is hanging out at the general store when an old Native American chief comes into the store, accompanied by a younger Native American man who serves as a translator. This is highly unusual, because usually the Native Americans in the area stay away from the white people. The old chief tells the men in the store that the lore of their tribe states that there will be a severe winter every seven years, and that every seven times seven years (49 years), there will be an unbelievably severe winter. And that the current year is a seven times seven year. This turns out to come true, as the entire book is about an extremely severe winter that almost results in the Ingalls family starving to death.
  • Lord Darcy: Lampshaded, where the characters are making fun of a sect for thinking 7 is a magical number - in that world's magic, only five - and, to a lesser extent, six - are.
  • Midnight’s Children: Parvati-the-witch is born seven seconds after midnight, making her one of the most powerful of the titular children.
  • The Monster Men: von Horn has not set foot on a place under American jurisdiction in seven years.
  • Night Watch (Series): Has seven levels of Twilight.
  • October Daye: In the novel Rosemary And Rue, Toby contemplates how she vanished longer than the seven years necessary to declare a human dead.
  • The Ordinary Princess: The titular character is a seventh child and her full name has seven words. Her name is Amethyst Alexandra Augusta Araminta Adelaide Aurelia Anne.
  • Rainbow Magic: There are seven fairies in each series and seven magical items Jack Frost stole.
  • Rowan of Rin: "Seven hearts the journey make. Seven ways the hearts will break."
  • Septimus Heap: Practically every number you encounter in the series is either somehow related to the number seven (often the result of adding the numbers together), or an homage to something or other. There's even a list at the end of the first book.
  • The Seven Sleepers: This Gilbert L. Morris series is about seven teenagers who have adventures in a post-nuclear attacked world.
  • The Sevenwaters Trilogy: The protagonist's family lives at Sevenwaters, which has a lake in the centre with seven streams feeding into it.
  • The Seven Wise Princesses: Based on the Persian epic poem Haft Paykar, the new Shah invites seven princesses from distant lands to live in color-coded pavilions that correspond to the heavenly bodies. When he visits each of them in turn, they tell him multi-layered stories that offer advice and wisdom for rulership.
  • A Song of Ice and Fire: Seven is an Arc Number of the series.
    • The largest polity in Westeros is called the Seven Kingdoms, which were once seven independent monarchies until the Targaryens came along.
    • The Faith of the Seven is the dominant religion in the main setting. It worships a god that has seven aspects: the Father, the Mother, the Warrior, the Smith, the Maiden, the Crone, and the Stranger. It teaches seven heavens and seven hells, each more intense than the last. Their congregation hall is called a sept, and their godsworn people are called septons and septas; "sept" is French for "seven".
    • The Kingsguard has seven members.
    • Ned and Catelyn Stark raise seven children at the start of the series: their five biological children (Robb, Sansa, Arya, Bran, and Rickon), Ned's bastard (Jon Snow), and Theon Greyjoy, who has been a ward of the Starks since he was 10 years old.
    • Seven positions on the Small Council: Hand of the King, Grand Maester, Master of Coin, Master of Ships, Master of Whisperers, Master of Laws, and Lord Commander of the Kingsguard.
    • George R. R. Martin is currently planning on making the series seven books long; whether he'll actually be able to do that is another matter.
  • Tolkien's Legendarium:
    • The Silmarillion / The History of Middle-earth
      • Each of the Seven Fathers of the Dawrves was the progenitor of one of the seven dwarven kindreds (Blacklocks, Broadbeams, Firebeards, Ironfists, Longbeards, Stiffbeards, Stonefoots).
      • Durin's Crown is a constellation made up of seven stars and named for the eldest of the Seven Fathers.
      • Feanor has seven sons, which is remarkedly unusual for an Elf.
    • The Fall of Gondolin:
      • Turgon got seven ships built to send one message to Valinor.
      • The entryway to the Elven city of Gondolin is protected by seven gates (wood, stone, bronze, iron, silver, gold, and steel).
      • Gondolin is the City of Seven Names:
        'We are the guardians of the issue of the Way of Escape. Rejoice that ye have found it, for behold before you the City of Seven Names where all who war with Melko may find hope.'
        Then said Tuor: 'What be those names?' And the chief of the guard made answer: 'It is said and it is sung: "Gondobar am I called and Gondothlimbar, City of Stone and City of the Dwellers in Stone; Gondolin the Stone of Song and Gwarestrin am I named, the Tower of Guard, Gar Thurion or the Secret Place, for I am hidden from the eyes of Melko; but they who love me most greatly call me Loth, for like a flower am I, even Lothengriol the flower that blooms on the plain." Yet,' said he, 'in our daily speech we speak and we name it mostly Gondolin.'
      • The Gondolin's archers "might shoot an arrow into heaven seven times as far as could the best bowman among Men"
      • After finally finding out the location of Gondolin, Morgoth waits seven years until his new war machines are built and ready.
    • The Lord of the Rings:
      • The Seven Rings of the seven Dwarf Lords; also a Shout-Out to "Snow White".
      • Seven palantíri - seeing stones - were brought to Middle-Earth by the refugees of Númenor.
      • The flag of the kings of Gondor depicts seven stars with the White Tree.
      • The city of Minas Tirith consists of seven levels.
  • The Treachery of Beautiful Things: Seven years pass between Tom's disappearance and Jenny's following him.

    Live-Action TV 
  • Extreme Makeover: Home Edition built seven homes for seven familes in seven days in their finale.
  • Battlestar Galactica (2003): The "significant seven" Cylons. Subverted: There used to be eight, and #7 was unlucky enough to be Abel to Cavil's Cain.
  • Seven mysterious Plot Coupons in Defying Gravity, each located on a different astronomical object.
  • Game of Thrones:
    • The Seven Kingdoms is the name given to the realm that controls most of the continent of Westeros and numerous offshore islands, ruled by the King of the Andals and the First Men from the Red Keep in the city of King's Landing. Its name dates back to the time prior to the War of Conquest, during which seven independent kingdoms existed in the continent.
    • The Faith of the Seven is the main religion of the Seven Kingdoms. In death, the Faith believes that there are Seven Heavens and Seven Hells.
    • The Kingsguard is an elite group of seven knights, supposedly the greatest and most skilled warriors in all of Westeros, who serve as the royal bodyguard of the King of the Andals and the First Men.
    • Seven positions on the Small Council: Hand of the King, Grand Maester, Master of Coin, Master of Ships, Master of Whisperers, Master of Laws, and Lord Commander of the Kingsguard.
  • Survivor season seven winner Sandra Diaz-Twine became the first (and, so far, only) two-time winner by winning season 20, seven years after her first win.
  • Doctor Who's A Good Man Goes to War was the 7th episode in its series, and the 777th in the show's nearly fifty-year run. Three days after it aired, on June 7, the BBC officially announced Series 7.
    • This was later followed by one of the Executive Producers announcing her departure from the show, at the end of the season, on 7/7.
    • Series 7 was the 49th (7 times 7) year of Doctor Who.
    • In a meta sense, the series went on hiatus during the Seventh Doctor's era.
  • Merlin had the seven Knights of Medhir.
  • In Power Rangers:
    • Season 7, Power Rangers Lost Galaxy, was the one where the franchise broke away from the continuous storyline of previous years and began telling a new separate story each year.
    • Due to escalation of the use of the Sixth Ranger, Power Rangers S.P.D. and Power Rangers RPM eventually got seven full-time members each. (A bit of a subversion with SPD, though, as the numbers on their suits were 1, 2, 3, 4, 5, VI for 6, and... 100.)
    • RPM also finished its run, and with it Disney-produced new episodes, with the franchise's 700th episode. Incidentally, it was Season 17.
  • In the Star Trek: The Original Series episode Amok Time, we learn that Vulcans go through heat every seven years (pon farr).
  • The second season of Star Trek: Discovery kicks off with the revelation that Starfleet suddenly detected seven red signals. The Enterprise was on her way to investigate one of them when she suffered multiple system failures, so Captain Christopher Pike takes command of the Discovery to carry out his mission.
  • The Pyramid game show series has employed this seven rule. During the ABC run, they made up to seven correct answers the standard. The "Big 7" category offered a cash prize for running seven out of seven. On the 80s version (CBS, syndication), the category holding the "7-11" card offered an $1100 cash prize for getting seven answers, and the "Mystery 7" offered a prize (trip, TV, video camera, car). The 1991-92 version had "Double Trouble 1" and "Double Trouble 2" (seven 2-word answers) and "Gamble For A Grand."
  • Seven Keys, an ABC game show from the early 60s, pitted a single contestant trying run a board of 75 squares to acquire one of seven keys to open a vault full of prizes. Running the board seven straight times wins everything automatically while failing at any time during the run causes all acquired keys to be forfeited.
  • The Lucky Seven game on The Price Is Right presents seven $1 bills to the contestant who must predict each number in the price of a car with $1 deducted for the difference in each number.
  • The Umbrella Academy (2019): Seasons 1 and 3 feature two teams of seven superpowered children groomed by billionaire inventor Reginald Hargreeves to become heroes. The third season reveals his goal was to send them to a pocket dimension, defeat its guardians, and sacrifice their life forces for the seven sigils in said pocket dimension to hit the universe's Reset Button to bring his wife back. He discusses the trope when manipulating them into agreeing with him, citing the number seven's significance to the Norse and the Blackfoot.

  • Muddy Waters: "I'm The Hoochie Coochie Man".
    On the seventh hour
    On the seventh day
    On the seventh month
    The seven doctors say
    He was born for good luck
    And that you'll see
    I got 700 dollars
    Don't you mess with me
  • Blue Öyster Cult's Imaginos album saga follows the eon-spanning manipulation of humanity by seven alien deities called "Les Invisibles". "Seven seven seven seven seven seven seven..."
  • The Monkees: "Seven days in a week made to choose from /But only one is right for me..."
  • Pink Floyd: "The seven is the number of the young light /It forms when darkness is increased by one" from "Chapter 24" from The Piper at the Gates of Dawn.
  • "Lucky Seven" by The Skatalites.
  • French rap group IAM wrote an entire song about the symbolic virtues of the number seven.
  • Iron Maiden's Seventh Son of a Seventh Son. The opening track even goes: "Seven deadly sins, Seven ways to win, Seven holy paths to hell, and your trip begins..."
  • With Märchen being Sound Horizon's seventh "story album", Revo amused himself by making use of the number seven constantly (over a hundred times, in his own words) throughout it: The album's story revolves around Märchen granting revenge to seven dead women from seven fairy tales, each associated with one of the Seven Deadly Sins. One of them is "Snow White". The lyrics booklet is seventy-seven pages long, and the number seven always appears in red.
  • The Dark Secret Saga features seven black books, seven demons, seven wars, seven white books, seven wizards, seven eclipses...
  • The White Stripes: "Seven Nation Army" from Elephant. Starts out with seven singular notes.
  • "7 Days, 7 Weeks" from dEUS' album Pocket Revolution, written about the sister of the lead singer.
  • In King Diamond's concept album Abigail, the title character was stillborn on July 7th, 1777.
  • Lucas Graham's 7 Years Old uses 7 (and, more specifically, the age of 7) as an Arc Number.
  • The 7-member group BTS announced a release titled MAP OF THE SOUL: 7 on the 7th year of their career since debut.
  • Prince's song 7 uses 7 as an Arc Number, tying into the contexts in Myths & Religion below.

    Myths & Religion 
  • Several religions regard 777 (Rule of Three and Rule Of Seven united) as special:
    • According to the American publication, the Orthodox Study Bible, 777 represents the threefold perfection of the Trinity. Satan the arrogant and imperfect is represented with 666.
    • A collection of Aleister Crowley's writings is entitled 777 and Other Qabalistic Writings of Aleister Crowley.
  • The Seven Deadly Sins
  • The Seven Heavenly Virtues
  • In Catholicism, there are seven sacraments: Baptism, Communion, Confirmation, Matrimony, Holy Orders, Reconciliation, and Anointing of the Sick,
  • Seven occurs all over The Bible — seven days of creation; David was the seventh of his father's sons. In Revelation, The Dragon has seven heads, The Beast has seven heads with seven crowns, seven churches in Asia Minor, seven seals, seven last plagues...
  • The Book of Revelation is perhaps a notable example here. From seven letters to the churches and seven seals to seven spiritual figures and seven trumpets, it generally indicates the state of perfection. The number is also very frequently used in the Gospel of John, who may or may not be the same John who wrote the book of Revelation.
  • Many Abrahamic traditons include seven heavens.
  • The Seven Sleepers
  • Any jolly sailor worth his salt will brag about his encounters along the Seven Seas (actually oceans), and brave adventurers in the days of old Arabia will travel across the Seven Deserts.
  • The Seven Lucky Gods of Japanese Mythology.
  • The seven Maskim in Mesopotamian Mythology, described in a famous poem beginning, "They are Seven! They are Seven!"
  • The Jade Emperor of Chinese Mythology has seven daughters, the youngest (seventh) is the one that has the most stories associated with her.
  • The Qixi festival is held on the 7th day of the 7th month in the lunar calendar, and is supposed to be the day that its two namesake stars (Altair/Cowherder and Vega/Weaver Girl) are closest to each other.
  • In the Book of Judges, the phrase "The children of Israel did evil in the sight of the LORD" is mentioned 7 times, which states that the Israelites begin return to their sin after God saves them.
  • In Islam odd numbers in general, and especially odd primes, are considered auspicious, as they represent the unity and indivisibility of God. As seven is odd and prime, it shouldn't be any surprise that seven shows up at several points in Islam, although not as much as five.
    • The most prominent is probably the Iman al-Mufaṣṣil, or Detailed Statement of Faith, in Sunni Islam, which states: "I believe in God [1] and His Angels [2], His Books [3] and His Messengers [4], in the Day of Judgment [5], that all things good or ill are the will/fate of God [6], and in resurrection after death [7].
    • The Hajj includes the Tawaf, circumambulation of the Kaaba that is performed seven times counterclockwise, and Sa'i, ritual walking between the hills of Safa and Marwah seven times.
    • "Al Fatihah", the first chapter of The Qur'an and a required reading in all salah prayers, has seven verses.
  • The seven main chakras note  out from Hindu culture, source of Esoteric Motifs for the likes of Yoga, Theosophy and assorted occultists, probabily derivative from those.
  • Pagan ritual magick tends to consider seven a powerful number for women, as it's closely linked to the moon.
  • Classical Mythology has the Pleiades, the seven daughters of the Titan Atlas and companions of Artemis. The eldest, Maia, gave birth to Zeus' son Hermes, the other five also gave birth to the children of Olympians, while the youngest, Merope, married a mortal (Sisyphus) and faded away. They are the namesake of a star system, which features not only them but also their parents, Atlas and Pleione.

  • The Doctor Who pinball game has the player "collecting" (so to speak) the seven Doctors. It may not have been intentional, since there were only seven of them when the game was made in 1992, but it still counts.

    Tabletop Games 
  • Dungeons & Dragons:
    • The Rod of Seven Parts is a Dismantled MacGuffin whose pieces are quite powerful in and of themselves. When reassembled, they have a tendency to break back apart and kill the wielder if overused.
    • In the Forgotten Realms setting, the Seven Sisters are Chosen by the goddess Mystra and are (sort of) daughters of her.
    • The Lawful Good afterlife is the "seven Heavens" of Mount Celestia, each tier of which is ruled by its own Celestial Paragon. The spirits of the dead have a chance to move up the Heavens and ultimately reach the unknown seventh Heaven, which is implied to bring some kind of Abstract Apotheosis as they join the substance of Celestia itself.
  • 7 Wonders:
    • The game supports up to seven players who represent leaders of "the great 7 cities of the ancient world". Also, they start the game with a seven-card hand.
    • The titular 7 Wonders. In the original game, each player can build one Wonder. In the Duel two-player spin-off, each player gets access to four Wonders, but once the seventh has been built, the last one permanently becomes unavailable.

  • Mostly averted in BIONICLE, which had six as its Arc Number, though Takanuva becoming the "Seventh Toa" was a big deal, and the stairway to the chamber holding the Mask of Life has 777 steps.

    Video Games 
  • Assault Suits Valken: The game is divided into seven missions. The first two focus on Jake weakening the enemy forces, the next two focusing on the destruction of Arc Nova and its aftermath, and the final three deciding the end of the war.
  • Super Mario Bros.:
    • In Super Mario Bros., there are seven Mushroom Retainers (Toads) imprisoned respectively in the first seven worlds.
    • Seven worlds in Super Mario Bros. 2 and Super Mario Land 2: 6 Golden Coins. Justified in the former, as its precursor (Doki Doki Panic) is set in a storybook that lasts seven chapters. In the latter, they're six Zones (the specific areas of Mario Land) plus the castle at the center.
    • Bowser has seven minions collectively known as the Koopalings, who debuted in Super Mario Bros. 3. Bowser Jr., his son, became the eighth in later games.
    • Each of the painting worlds in Super Mario 64 has seven Power Stars, including the 100-Coin Star. And in the Nintendo DS remake, each playable character has to catch seven rabbits in order to unlock all special minigames; there is also a Power Star obtained after capturing all seven white rabbits.
    • The last level in Super Mario Sunshine is unlocked after defeating Shadow Mario in each of the other seven worlds. And in each of them, Shadow Mario is found in the seventh episode.
    • Seven Sprixie Princesses in Super Mario 3D World. Relatedly, seven of the collectible stamps are modeled after them.
    • Mario Party 3: Story Mode revolves around collecting the legendary seven Star Stamps to become the next Superstar. The Stamps represent, respectively: Wit, Kindness, Strength, Love, Courage, Beauty and Mischief.
    • Seven Star Pieces in Super Mario RPG: Legend of the Seven Stars.
    • Seven Star Spirits in Paper Mario 64.
    • Seven Crystal Stars in Paper Mario: The Thousand-Year Door.
    • Super Paper Mario has eight Pure Hearts, but you start the game with one of them, so you've still got to get seven.
    • Mario Kart 7, the first game in the Mario Kart series to be numbered this way. Also the debut of the Lucky Seven item, which gives an assortment of seven weapons.
  • Sonic the Hedgehog:
  • Kingdom Hearts:
    • There are seven Princesses of Heart, women with heart made of pure light, who can open the final keyhole.
    • Kingdom Hearts 3D [Dream Drop Distance] features seven worlds, with seven sleeping keyholes. It also introduces the concept of seven lights, a component of the χ-Blade, later revealed to be seven Keyblade wielders (Sora, Riku, Mickey, Aqua, Ventus, Lea, and Kairi).
    • The original Keyblade Masters consist of the Master of Masters and his six students, all of whom are named after the Seven Deadly Sins.
  • Seven needles in Mother 3.
  • Seven personalities in Killer7, along with a revolver that has seven chambers. The game is also divided into seven chapters.
  • In Resident Evil 4, a gun named Killer7 costs 77700 pesetas, and has initially a seven-bullet capacity.
  • The Marathon trilogy established Bungie's Running Gag of putting references to the number "7" in everything. Just look at this!
  • Prominent in the Halo series, due to this being a Bungie Running Gag:
    • There have been whole groves of Epileptic Trees over how almost every arbitrary number in the series is somehow related to 7. One of the more obvious ones is 117, Master Chief's operating number, and that there are seven of the eponymous Halo rings or were, before MC blew one up in the first game.
    • 343 Guilty Spark, the namesake of current franchise developers 343 Industries. 343 is 7³. In fact, all the Halos' Monitors have designation numbers that are multiples of 7.
  • All over the place with Punch-Out!! Wii's version of Aran Ryan. He can knock you out in seven punches, he always gets up from a knockdown on the seventh count, you can hit him seven times when he's stunned, you instantly win if you hit him with seven Star Punches, and sevens pop up in his challenges in Exhibition Mode. He's Irish, so it's a "lucky seven"/"luck of the Irish" gag.
  • Final Fantasy:
    • Final Fantasy VII (figures) has something interesting happen if a character's HP hits 7777. The Lucky Seven concept continues in the prequel Crisis Core, where getting three Sevens on the Digital Mind Wave (the battle system's slot-machine gimmick) will level up your character.
    • Final Fantasy IX contains the attack "Lucky 7s", a Shout-Out to the above.
  • The seventh Touhou game is the only one to feature the "Supernatural Border" system, which can and will save your life on occasion. It is also the first game in the series to have visible hitboxes. Also, most of the games have a total of 7 stages - 6 normal and the Extra. The 2 exceptions are Story of Eastern Wonderland (with only 6) and Perfect Cherry Blossom (Phantasm = 8).
  • Stage 7 of Battle Garegga is home to a very popular scoring trick involving using bombs on the penultimate boss's grenades.
  • DJMAX Technika has a song called "Area 7".
  • There are seven tetrominoes in Tetris: I, T, O, S, Z, L, J.
  • In Gradius Gaiden, stage 8 of the first loop has six bosses. On the second loop, it gains a seventh boss, Heaven's Gate.
  • Pokémon:
    • The best you can get at the slots in the Game Corner is triple sevens.
    • In Pokémon FireRed and LeafGreen, the Sevii Islands are are seven normally accessible islands (though certain event lets you access two more) and they were all created in 7 days, according to a lady on Quest Island, the seventh island. Quest Island itself also houses the seven botany-themed Tanoby Chambers, which are chock full of Unown and shrouded in mystery. Additionally, there are seven beta "Sevii Islands" that are not accessible during normal gameplay.
    • Pokémon Emerald Version introduces Gym Leader-like individuals known as the seven Frontier Brains, each of whom heads a unique battling facility. To attain success in said facilities, one must repeatedly win by defeating sets of seven Trainers in a row. There are a few exceptions, though.
    • In Generation V, the villainous Team Plasma includes a group of high-ranking members known as the Seven Sages.
    • Pokémon Mystery Dungeon: Explorers of Time, Darkness, and Sky all feature the Seven Treasures, items which are obtained by defeating seven bosses that guard seven secret dungeons.
  • The Legend of Zelda:
    • The Legend of Zelda: A Link to the Past: The game set the tradition in itself and subsequent games of featuring seven sages who are entrusted the role of protecting Hyrule. In this game in particular, the sages are the Seven Maidens, among which Princess Zelda is included. To rescue them, Link has to venture through the Dark World and conquer seven dangerous dungeons, many of which are coincidentially located in areas equivalent to major locations in Hyrule.note . The Seven Sages return, with different incarnations based on their eras, in Ocarina of Time, Four Swords Adventures and A Link Between Worlds; there were Seven Sages in The Legend of Zelda: Twilight Princess before Ganondorf killed one of them.
    • The following games have exactly seven dungeons/stages each:
      • Zelda II: The Adventure of Link: Seven palaces across all of Hyrule. The first six have statues onto which the sacred crystals have to be deposited in order to dispel the barrier protecting the entrance to the seventh, where the Triforce of Courage awaits.
      • The Legend of Zelda: The Wind Waker: The first two dungeons are tackled to earn the Goddess Pearls (Dragon Roost Cavern and Forbidden Woods), the next two are tackled to find the Master Sword and then finally rescue Link's sister (Tower of the Gods and Forsaken Fortress respectively), the next two are tackled to awaken the new Sages and empower the Master Sword (Earth Temple and Wind Temple), and finally the final dungeon to confront Ganondorf and save Zelda (Ganon's Tower).
      • The Legend of Zelda: Skyward Sword: The game combines the trope with Rule of Three, as Link embarks on a journey across the first three dungeons (Skyview Temple, Earth Temple and Lanayru Mining Facility) to find Zelda's whereabouts, then the next three dungeons (Ancient Cistern, Sandship and Fire Sanctuary) to upgrade the Goddess Sword into the Master Sword, and finally the seventh dungeon (Sky Keep) to find the three fragments of the Triforce and destroy The Imprisoned.
    • The Legend of Zelda: Majora's Mask: Seven Zora eggs to retrieve. The number is relevant because all seven must be grouped together so they can hatch. For the same reason, the song the newborn Zora children teach to Link to cure Lulu's disphonia and enter the Great Bay Temple has seven musical notes in its chorus.
    • In the Oracle of Seasons, there is a secret that requires the player to find 777 Ore Chunks.
  • No More Heroes references Killer7 with the Lovikov Balls, as there are 49 of them in total (7 x 7), seven are required for a new ability, of which there are seven as well (each of them based on one of Emir's personalities from Killer 7). Also, one of the Dark Side powers are enabled when the jackpot (which appears every time an enemy is killed) hits 777. In No More Heroes 2: Desperate Struggle, both training courses in Ryan's gym have seven levels each.
  • In the backstory of the Dragon Age games, Chantry lore claims that the Blight appeared on Thedas when seven ancient Tevinter Magisters traveled to the Golden City of the Maker in an attempt to steal his power. Their invasion of the City corrupted it into the Black City, and they returned to Thedas as the first Darkspawn. The Chantry's lore is all but confirmed in the Dragon Age II DLC "Legacy" with the appearance of Corypheus, one of the original Magisters, who acts as the Final Boss. Each magister corresponded to one of the seven old gods, which means there should be seven blights. Possibly subverted, as there is speculation In-Universe to the existence of an eighth old god.
  • The fifth case of Phoenix Wright: Ace Attorney features a police ID that is all 7's. That ID belongs to Police Chief Damon Gant, the murderer of both the current case and the SL-9 Incident.
  • The number seven is huge in Tales of the Abyss. Seven fonons for seven elements. Seven fonstones. Six party members, but Mieu makes seven companions, while Asch is something of the seventh playable character. Six God Generals, but their leader makes seven antagonists. Overlaps with Arc Number.
  • In Undertale, the monsters need the power of seven human souls in order to break the barrier keeping them underground. They already have six of them when the player character stumbles into their kingdom...
  • Fallen London: Seven is the Number. What does this mean? It's not entirely known. But there are more than a few ominous events where the number is relevant, and usually not good news. Especially when it comes to Mr. Eaten's name; there are always a number of horrible acts you must commit on yourself, and that number is always seven. Seven are the scars that will not heal. Seven are the chains that weigh on Seeker's minds. Seven are the stains that mark their soul. And at the end, there are seven candles they must collect.
  • Idolish 7 The titular idol group has 7 members
  • In the mobile phone game Love Nikki - Dress Up Queen the game's world, Miraland, has 7 nations (Apple Federal, Lilith Kingdom, Cloud Empire, Pigeon Kingdom, North Kingdom, Republic of Wasteland, and Ruin Island), all with their own distinct fashion styles.
  • Cereal Soup: The creationist god Prideweaver not only had seven sisters, but also had seven sons, with each one being raised by their aunts.
  • The Trails Series has the number seven as a major thing throughout the franchise. From the seven elements of Fire, Water, Wind, Earth, Time, Space, and Mirage, to the Seven Sept-Terrion the Ouroboros members have been trying to look for.

    Visual Novels 
  • In the Holy Grail Wars of Fate/stay night and related works, the Grail chooses seven Masters, who summon seven Heroic Spirits as Servants, which manifest in seven different classes. Although this rule seems to have some loopholes. Each Master also has three Command Spells.


    Web Original 
  • In The Angry Video Game Nerd's review of Kid Kool (whose full name is Kid Kool and the Quest for the Seven Wonder Herbs), the Nerd says that the game has a story that says that the king has a terminal illness, and that Kid Kool has to find the aptly named Seven Wonder Herbs.
    AVGN: Yeah, I bet the game designers were smoking seven different herbs.
  • PeanutButterGamer always has 7 people in his Hardcore series.
  • PlayStation Access has a weekly list video series about gaming, and almost all have seven entries for each respective topic.

    Western Animation 
  • Seven original members of the Justice League.
  • On Wacky Races, car #7, the Bulletproof Bomb, is occupied by seven little mobsters, the Ant Hill Mob. The Ant Hill Mob appeared a year later on The Perils of Penelope Pitstop.
  • My Little Pony: Friendship Is Magic:
    • According to the trading cards, there are seven Elements of Harmony, instead of the six shown in the show proper, though this appears to have been made in error, especially in light of the two-part episode "Shadow Play" showing that there were no more than six Pillars of Equestria, who played a direct role in creating the Elements of Harmony.
    • Starlight Glimmer joined the main cast in Season 6, making the Mane 6 into the Mane 7.
    • Similar to the above, with the addition of Sci-Twi to the cast of My Little Pony: Equestria Girls, the main cast of the EG universe is now referred to as the HuMane 7.
  • Snow White and the Seven Dwarfs: Takes the fairy tale's "seven dwarfs" and kicks it up a notch.
    Queen: Magic mirror on the wall, who now is the fairest one of all?
    Mirror: Over the seven jewelled hills, beyond the seventh fall, in the cottage of the seven dwarfs, dwells Snow White, fairest one of all.
  • In The Flight of Dragons, Peter is said by Antiquity to be the 777th descendant of the Great Peter, who taught dragons to speak.
  • Miraculous Ladybug has the seven core Miraculouses and Kwamis: Tikki the Ladybug, Plagg the Black Cat, Trixx the Fox, Pollen the Bee, Duusuu the Peacock, Nooroo the Butterfly and Wayzz the Turtle. There are others, but these ones are the first to be used and get central placement in the Miracle Box.

    Real Life 
  • In the sinking of the Titanic, lifeboat 7 was the first to depart the ship.
  • Seven continents on Earth.
  • Seven seas.
  • Seven wonders of the world.
  • Seven days in a week. Which is, in turn, caused by the presence of seven celestial objects regularly visible from Earth — the sun, moon and five planets.
  • Seven colors of the rainbow. This is actually a contrivance of Sir Isaac Newton, a well-known scientist and not-well-known mystic. Observing the spectrum of sunlight produced by his prism, he convinced himself that the area between blue and purple was a separate color, indigo, because seven colors would fit his numerology better. The joke of this is, he missed a real seventh color: cyan, between green and blue. In Russian language, cyan IS addressed as the true seventh color.
  • As a homage to this trope, the highest jackpots on a slot machine is often assigned to three 7s.
  • 21 (7×3) in blackjack.
  • Seven is the most likely roll of a pair of standard six-sided dice. In craps, you can win by rolling a seven (or eleven) first, and lose by getting seven on any subsequent roll. The fact that seven is the most likely sum for the outcome of rolling two dice (with a probability of 1/6) is likely the origin of the whole "seven is a lucky number" superstition.
  • In chemistry, the pH scale is neutral at 7. And it's not arbitrary at all, since H+ molarity in water is approximately 10^(-7), and pH is a logarithmic scale (though the mole's value, from which molarity comes, is indeed a fixed one).
  • By analogy to the Pleiades, "The Seven Sisters" is used to refer to:
    • The seven historic women's colleges of the United States (Barnard, Bryn Mawr, Mount Holyoke, Radcliffe, Smith, Vassar, and Wellesley).
    • The seven largest oil companies in the world from 1940 to 1973. More specifically, they were part of the Consortium for Iran oil cartel. Before they were sidelined by OPEC, the seven were responsible for a rather large amount of unpleasantness in the Middle East. They are (current names): BP, Gulf Oil, Chevron, Royal Dutch Shell, Esso, Exxon-Mobil, and So Cal.
    • The original seven Hollywood film companies: 20th Century Fox, Columbia Pictures, Metro-Goldwyn-Mayer, Paramount, RKO Pictures, Universal, and Warner Bros.
    • The seven main denominations of the American Protestant church: Episcopalian, Lutheran, Methodist, Presbyterian, Congregationalist, Baptist, and Reformed.
    • The common English nickname for the seven Stalinist skyscrapers built in Moscow in late '40s to early '50s: Hotel Ukraine, Hotel Leningradskaya, Ministry of Foreign Affairs main building, Red Gates administrative building, Kotelnicheskaya Embankment building, Kudrinskaya Square building and the Moscow State University main building. Built on a massive scale in a combination of American Art Deco and Russian Baroque styles, they were to represent the power of the country emerging victorious from the ruin of WWII. Ironically, two more were planned, but never built, as Stalin died and Khruschev wasn't a follower of his notions of grandeur. Note that the name isn't used in Russia itself, where these are called simply (Stalin's) Highrises.
  • Almost all mammals have seven cervical vertebrae.
  • A lot of cities are claimed to have been built on "Seven Hills." Rome is the most famous and would be the trope namer if this were a trope itself, but the other wiki has a whole list of them.
  • A (seven-spotted) ladybug has seven spots.
  • Seven is the atomic number of nitrogen, which makes up the majority of Earth's atmosphere.
  • In physics and metrology, there are seven SI base units: Meter (length), kilogram (mass), second (time), kelvin (temperature), mole (amount of substance), ampere (electric current), and candela (luminous intensity).
  • Television channels with the number seven love this.
  • Microsoft Windows 7, the first to use the numbering scheme in its marketing since way back with Windows 3.1. Windows 7 lived up to its number when it became one of the most popular Windows releases right up there with XP. Many who were dissatisfied with Windows 8's polarising UI held on to Windows 7, and continued to do so even after Windows 10 was released and Microsoft discontinued support for 7 (though paying enterprise customers stil get security updates for 7).
  • The reason Ian Fleming gave James Bond the number 007 is because of Real Life Elizabethan spy John Dee, who would sign his letter to Queen Elizabeth I as "007" - the 00 indicating the letter was for her eyes only, and "7" being the luckiest number.
  • In the event of a catastrophe that shuts it down, fourteen people from around the world have been entrusted with seven keycards to restart the internet.
  • In the working world, this is often combined with the Rule of Two as it's an unspoken rule that, if you quit, you should give at least two weeks(14 days, 7*2) notice before leaving.
  • In the navy, mainly before World War 2 are the Big Seven Battleships which survive the scrapping after the Washington Treaty happened. They were Nelson and Rodney in the Royal Navy. Colorado, Maryland and West Virginia in the United States Navy and lastly are Nagato and Mutsu in the Imperial Japanese Navy.
  • The Curse of Tippecanoe, according to legend, managed to claim the lives of seven Presidents (William Henry Harrison, Abraham Lincoln, James Abram Garfield, William McKinley, Warren Gamaliel Harding, Franklin Delano Roosevelt, and John Fitzgerald Kennedy, in that order) between 1841 and 1963 before going dormant in the '80s.
  • Seven Earth-like (at least in terms of size and mass) planets are known to orbit the faint, nearby, star TRAPPIST-1.
  • In dating, the rule of 7 is used as a scale for a socially acceptable relationship. The rule of thumb is that you must half your own age (divide it by 2) and then add 7 to it. Whatever the result, you can't date anyone lower than the answer. The formula does have its flaws; if it's a .5 answer (i.e. 19.5 or 21.5) then you're better off rounding it up to the nearest whole number to avoid confusion or trouble, the relationship can still be seen as creepy with or without the rule of 7, and different countries have different ages of consent.