Right after [[RuleOfThree three]], seven is the most commonly used "ominous" 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 come from the seven celestial bodies that could be seen with the naked eye, (Sun, Moon, and the planets up to Saturn[[note]]If the motion of Uranus had been noticed, the lucky number would likely be eight instead[[/note]]), 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 Literature/TheBible, especially the Literature/BookOfRevelation, uses it repeatedly, seven became even more famous as a divine number, or as the number of perfection.

LuckySeven is a subtrope about examples where it is considered a lucky number. Also see MagicalSeventhSon, SevenDeadlySins, and SevenHeavenlyVirtues.



[[folder:Anime & Manga]]
* Seven Manga/{{Dragon Ball}}s.
* Seven Rainbow Crystals in the ''Anime/SailorMoon'' anime.
* Seven Celestial Warriors in ''Manga/FushigiYuugi''.
* Seven Shichibukai in ''Manga/OnePiece''. There were also seven Straw Hat Pirates for a considerable length of time (then they gained more crew members).
* ''Manga/{{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 [[AnguishedDeclarationOfLove sincerely confesses her love]] to Naruto is Chapter 437 (4+3=7). The manga itself ends with the epilogue in Chapter 700, [[spoiler:where Naruto is the Seventh Hokage and is HappilyMarried to Hinata. Their romance unfolds during the seventh ''Shippuden'' movie, ''Anime/TheLastNarutoTheMovie'']]. Also counts as LuckySeven.
* ''Manga/{{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.
* The [[FanNickname Sexy Seven]] from ''Manga/{{Claymore}}''.
* ''DiamondCutDiamond'''s story starts off Seven Years after the in-universe show ''Esper Shounen'' was cancelled.
* ''Manga/FairyTail'':
** All the dragons (except, apparently, the jerkass black dragon) disappeared seven years ago. On July Seventh of the year 777. Seven years later, [[spoiler: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, [[spoiler:Future Rogue]] brings seven [[spoiler:dragons from the past]], and seven [[spoiler:Dragonslayer mages]] fight them. The final battle with the aforementioned jerkass black dragon involves seven Dragon Slayers fighting him.
** Regarding the Grand Magic Games, [[spoiler: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 Literature/BattleRoyale, 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 [[Manga/KatekyoHitmanReborn Dying Will Flames]]. Because of this, all important groups of people also come in sets of seven.
* ''Anime/YuGiOhGX'' has 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).
** Inverted in ''Anime/YuGiOh5Ds'', where Season 1 antagonists the Dark Signers and their signature monsters, the Earthbound Gods, number seven in all.
** The seven Millennium Items in the original ''Anime/YuGiOh''.
** ''Anime/YuGiOhZEXAL'' gives us the Seven Barian Emperors who wield the seven Over-Hundred Numbers.
* ''Anime/PokemonJirachiWishmaker'': Wishing Star of the ''Seven'' Nights.
* ''Manga/SaintSeiya'' has seven Odin Saints (each guarding one of the seven Sapphire Stones), as well as seven Marine Saints.
* ''Manga/YuYuHakusho'' has the [[AntiVillain anti-villainous]] seven espers, the ''seventh'' of which has seven personalities.
* ''Manga/NausicaaOfTheValleyOfTheWind'' 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 ''Manga/MajinTanteiNougamiNeuro''.
* In ''Anime/MagicalGirlLyricalNanohaStrikers'', seven of twelve Numbers make a HeelFaceTurn. Ironically, Sette, the number VII among them, doesn't.
* Father from ''Manga/FullmetalAlchemist'' has seven Homunculi as his children. They are based of the SevenDeadlySins.
* The Seven Stakes of Purgatory from ''VisualNovel/UminekoWhenTheyCry'' are also based of the SevenDeadlySins.
* The titular witches of ''Manga/YamadaKunAndTheSevenWitches''. [[spoiler: 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 ''Anime/MonsterRancher'', the Searchers, the heroes seeking the Phoenix, were a group of seven.
* In ''Anime/DigimonAdventure'', there were originally seven Digidestined=/=Chosen Children, then they gained a SixthRanger.
* In ''Manga/MadeInAbyss'', the titular [[EldritchLocation Abyss]] is divided in seven layers, each more twisted and dangerous than the last.
* As a direct consequence to "Literature/SnowWhiteAndTheSevenDwarfs", seven Leafe Knights in ''Manga/{{Pretear}}''

* SevenDirtyWords by Creator/GeorgeCarlin.

[[folder:Comic Books]]
* DC's [[ComicBook/SevenSoldiers Seven Soldiers of Victory]], both in the Golden Age and in the anthology series by Creator/GrantMorrison.
** 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. [[spoiler:Then they all die.]]
* Franchise/JusticeLeagueOfAmerica:
** The League's seven founding members: Franchise/{{Superman}}, Franchise/{{Batman}}, Franchise/WonderWoman, Franchise/GreenLantern, ComicBook/TheFlash, ComicBook/{{Aquaman}} and the ComicBook/MartianManhunter. 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 Creator/GrantMorrison's ''JLA'', the original seven are reunited, except with [[LegacyCharacter Legacy Characters]] for the then-dead Franchise/GreenLantern and Flash.
** In the ComicBook/{{New 52}}, [[ComicBook/TeenTitans Cyborg]] is now a founding member rather than the ComicBook/MartianManhunter, 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.
* Creator/WarrenEllis often used this in his {{Creator/Wildstorm}} work: the faux JLA in ''ComicBook/{{Stormwatch}}'', the pulp era heroes in the first issue of ''ComicBook/{{Planetary}}'' (and the other faux JLA that they fight), and the members of ''ComicBook/TheAuthority'' (whose leader {{Lampshade}}s the trope).
* "The Seven" are the main superhero team in ''Comicbook/TheBoys.''
* ''ComicBook/ScottPilgrim'': Seven Evil Exes. Gideon takes the [[ArcNumber "seven" motif]] UpToEleven. He then takes it up to ''twelve'' in TheMovie, even stating after he swallows his gum that "[[LargeHam It's gonna be in my digestive tract for SEVEN YEARS!]]"
* The Mexican superhero ''ComicBook/{{Kaliman}}'' 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 ''ComicBook/TheSandman''; [[BlindSeer Destiny]], [[PerkyGoth Death]], [[DreamWeaver Dream]], [[WarriorPoet Destruction]], [[AmbiguousGender Desire]], [[BodyHorror Despair]] and [[{{Cloudcuckoolander}} Delirium]].
* The seven aspects of the emotional spectrum from 2000s-era ''GreenLantern'', 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, ComicBook/TheAvengers 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.

[[folder:Fairy Tales]]
* In the Literature/{{Child Ballad|s}} ''Literature/YoungBeichan'', he promises to come for her and marry her within seven years, in most variants.
* "Literature/SnowWhiteAndTheSevenDwarfs": Seven dwarfs.
* Literature/TheWolfAndTheSevenYoungKids: Seven little goats.
* Literature/TheBraveLittleTailor kills seven flies in one blow.
* ''Literature/BlueBeard'': Blue Berad had seven wives.
* ''Literature/TheSleepingBeauty'': Seven good fairies were invited upon the eponymous princess'birthday.
* Literature/TheSevenRavens: The children are changed into seven ravens.
* Literature/HopOMyThumb uses the "Seven Mile boots" to cross great distances in a small amount of time.
* In ''Literature/{{Bearskin}}'', the hero must wear the bearskin for seven years. Also neither bathe nor cut his hair nor pray for that time.
* In ''Literature/TheOneHandedGirl'', the girl is found after seven days in the woods.
* ''Literature/TheSevenFoals''
* ''Literature/TheGiantWhoHadNoHeartInHisBody'': Seven princes.
* ''Literature/TheNutcrackerAndTheMouseKing'': the Mouse King has seven heads.
* SevenSimeons: a Russian fairy tale about seven brothers, each being an expert in his chosen trade.

[[folder:Fan Works]]
* Played with in ''Fanfic/AVoiceInTheWilderness''. 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.
* ''Fanfic/HopToIt'' 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, Mantis, Dragonfly and Firefly.
* In Fialleril's ''Franchise/StarWars'' 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 ''Fanfic/DoubleAgentVader''.

[[folder:Films -- Live-Action]]
* ''Film/{{Se7en}}'', featuring a serial killer theming his crimes around the SevenDeadlySins.
* ''[[Film/TheMagnificentSeven1960 The Magnificent Seven]]''.
* And ''Film/SevenSamurai'', upon which the previous was based.
* ''Film/JamesBond'' 007.
* ''Film/TheresSomethingAboutMary'': "Seven's the number. Like a mouse on a wheel."
* In ''Film/HotFuzz'', Nicholas Angel's badge number is 777.
* Just like the book, ''Film/ScottPilgrimVsTheWorld'' features Ramona Flowers' seven evil exes.
* In ''Film/DemolitionMan'', Simon Phoenix overrides a security program on a computer using a string of '7's, causing a cop to become electrocuted.

* In the backstory for the ''Literature/LoneWolf'' series, Nyxator the Dragon created the seven Lorestones for the forces of Good. In mockery, Agarash the Damned created seven Doomstones.

* Averted in the ''Illuminatus!'' trilogy where 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.
* ''Literature/HarryPotter'':
** Invoked by Voldemort, who planned on splitting his own soul into seven pieces six {{Soul Jar}}s plus the piece still in his body. [[spoiler: Then he made Harry the seventh Horcrux without knowing it...]]
** Seven books for seven years at Hogwarts.
** Seven Weasley children.
** This would have culminated with book 7 being released on 7/7/07, but [[HarsherInHindsight 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.
* Practically every number you encounter in the ''Literature/SeptimusHeap'' 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.
* Subverted in ''Literature/{{Discworld}}'', where the most magical number is 8. Magic being a very [[SpeakOfTheDevil dangerous thing to play with]], there are a lot of superstitions around the number (some people insist on calling it "7a").
* Gilbert L. Morris' books "The Seven Sleepers" series is about seven teenagers who have adventures in a post-nuclear attacked world.
* "Seven Little Monsters".
* Lampshaded in ''Literature/LordDarcy'' stories, 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.
* ''Literature/TheLordOfTheRings'': The Seven Rings of the seven Dwarf Lords; also a ShoutOut to "Literature/SnowWhiteAndTheSevenDwarfs".
** And the [[Literature/TheSilmarillion seven sons of Fëanor]].
** The flag of the kings of Gondor depicts seven stars with the White Tree, and there are seven palantíri.
*** Aren't the seven stars on the flag emblematic of the palantíri?
* ''Literature/NightWatch'' has seven levels of Twilight.
* ''Literature/KeysToTheKingdom'' by Garth Nix has seven [[DayOfTheWeekName Morrow Days]] who are [[EvilOverlord Trustees]] of seven [[GottaCatchThemAll Parts of]] [[SpellMyNameWithAThe The Will]] which each represent one of the SevenHeavenlyVirtues and wield seven [[CosmicKeystone magic]] [[CapitalLettersAreMagic Keys]], who each hold jurisdiction over one of the [[HourOfPower seven days of the week]] and are in charge of one of the seven parts of [[BiggerOnTheInside The]] [[TheMultiverse House]] and due to breaking their [[MagicallyBindingContract contracts]], each suffer from one of the SevenDeadlySins.
* ''Literature/ASongOfIceAndFire'': Seven is an ArcNumber of the series. It's associated with the the Faith of the Seven, the dominant religion in the main setting, the Seven Kingdoms. There are seven aspects of god, septagon-shaped temples called septs, seven hells, seven members of the Kingsguard, etc. Creator/GeorgeRRMartin is currently planning on making the series seven books long; [[TrilogyCreep whether he'll actually be able to do that]] [[FourLinesAllWaiting is another matter.]]
* In Creator/EdgarRiceBurroughs's ''Literature/TheMonsterMen'', von Horn has not set foot on a place under American jurisdiction in seven years.
* In Creator/SeananMcGuire's ''Literature/OctoberDaye'' novel ''Rosemary And Rue'', Toby contemplates how she vanished longer than the seven years necessary to declare a human dead.
* In Creator/RuthFrancesLong's ''Literature/TheTreacheryOfBeautifulThings'', seven years pass between Tom's disappearance and Jenny's following him.
* In the ''Literature/RainbowMagic'' series, there are seven fairies in each series and seven magical items Jack Frost stole.
* In Creator/JulietMarillier's ''Literature/TheSevenwatersTrilogy'', the protagonist's family lives at Sevenwaters, which has a lake in the centre with seven streams feeding into it.
* ''Literature/TheOrdinaryPrincess'': The titular character is a seventh child and her full name has seven words. Her name is Amethyst Alexandra Augusta Araminta Adelaide Aurelia Anne.
* In ''Literature/MidnightsChildren'', Parvati-the-witch is born seven seconds after midnight, making her one of the most powerful of the titular children.
* ''Literature/DeltoraQuest'' has the seven tribes of Deltora and the seven gems of the belt of Deltora. The third cycle adds the seven dragons.
* ''Literature/RowanOfRin'': "Seven hearts the journey make. Seven ways the hearts will break."
* ''Literature/TheHeroesOfOlympus'': Seven heroes for the Prophecy of the Seven in the series.

[[folder:Live-Action TV]]
* ''Series/ExtremeMakeoverHomeEdition'' built seven homes for seven familes in seven days in their finale.
* ''Series/BattlestarGalactica2003'': The "significant seven" Cylons. Subverted: [[spoiler:There used to be eight, and #7 was unlucky enough to be Abel to Cavil's Cain.]]
* Seven mysterious PlotCoupon[=s=] in ''Series/DefyingGravity'', each located on a different astronomical object.
* ''Series/GameOfThrones'':
** 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.
* ''Series/{{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.
* Series/DoctorWho's [[Recap/DoctorWhoS32E7AGoodManGoesToWar 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 will be the 49th (7 times 7) year of ''Series/DoctorWho''.
* ''Series/{{Merlin}}'' had the seven Knights of Medhir.
* In ''Franchise/PowerRangers'':
** Season 7, ''Series/PowerRangersLostGalaxy'', 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 SixthRanger, ''Series/PowerRangersSPD'' and ''Series/PowerRangersRPM'' 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 ''Series/StarTrekTheOriginalSeries'' episode [[Recap/StarTrekS2E1AmokTime Amok Time]], we learn that Vulcans go through heat every seven years (''pon farr'').
* The ''Series/{{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."

* Music/MuddyWaters: "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''
* Music/TheMonkees: "Seven days in a week made to choose from /But only one is right for me..."
* Music/PinkFloyd: "The seven is the number of the young light /It forms [[WordSaladLyrics when darkness is increased by one]]" from "Chapter 24" from ''Music/ThePiperAtTheGatesOfDawn''.
* "Lucky Seven" by Music/TheSkatalites.
* French rap group IAM wrote an entire song about the symbolic virtues of the number seven.
* Music/IronMaiden'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 Music/SoundHorizon's seventh "[[RockOpera 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 SevenDeadlySins. One of them is "Literature/SnowWhiteAndTheSevenDwarfs". The lyrics booklet is seventy-seven pages long, and the number seven always appears in [[color:red:red]].
* ''[[Music/RhapsodyOfFire The Dark Secret Saga]]'' features seven black books, seven demons, seven wars, seven white books, seven wizards, seven eclipses...
* Music/TheWhiteStripes: "Seven Nation Army" from ''Music/{{Elephant}}''. Starts out with seven singular notes.
* "7 Days, 7 Weeks" from Music/{{dEUS}}' album ''Music/PocketRevolution'', written about the sister of the lead singer.
* In King Diamond's concept album ''Abigail'', the title character was stillborn on July 7th, 1777.

[[folder:Myths & Religion]]
* Several religions regard 777 (RuleOfThree and RuleOfSeven 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 Creator/AleisterCrowley's writings is entitled ''777 and Other Qabalistic Writings of Aleister Crowley''.
* The SevenDeadlySins
* The SevenHeavenlyVirtues
* Seven occurs all over Literature/TheBible -- seven days of creation; David was the seventh of his father's sons. In Revelation, TheDragon has seven heads, The Beast has seven heads with seven crowns, seven churches in Asia Minor, seven seals, seven last plagues...
* 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 [[ArabianNightsDays days of old Arabia]] will travel across the Seven Deserts.
* The [[http://en.wikipedia.org/wiki/Seven_Lucky_Gods Seven Lucky Gods]] of Myth/JapaneseMythology.
* The seven Maskim in Myth/MesopotamianMythology, described in a famous poem beginning, "They are Seven! They are Seven!"
* The Jade Emperor of Myth/ChineseMythology has seven daughters, the youngest (seventh) is the one that has the most stories associated with her.
* The ''[[http://en.wikipedia.org/wiki/Qixi 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 Literature/BookOfJudges, the phrase "The children of Israel did evil in the sight of the LORD" is mentioned 7 times, which states that the Israelites begin [[ChronicVillainy return to their sin after God saves them.]]
* In UsefulNotes/{{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].
* Pagan ritual magick tends to consider seven a powerful number for women, as it's closely linked to the moon.

* The ''Pinball/DoctorWho'' 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.

[[folder:Video Games]]
* ''Franchise/SuperMarioBros'':
** In ''VideoGame/SuperMarioBros1'', there are seven Mushroom Retainers (Toads) imprisoned respectively in the first seven worlds.
** Seven worlds in ''VideoGame/SuperMarioBros2'' and ''VideoGame/SuperMarioLand2SixGoldenCoins''. Justified in the former, as its precursor (''VideoGame/DokiDokiPanic'') 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. Bowser Jr., his son, became the eighth in later games.
** Each of the painting worlds in ''VideoGame/SuperMario64'' has seven Power Stars, including the 100-Coin Star. And in the UsefulNotes/NintendoDS remake, each playable character has to catch seven rabbits in order to unlock all special minigames.
** The last level in ''VideoGame/SuperMarioSunshine'' 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 ''VideoGame/SuperMario3DWorld''. Relatedly, seven of the collectible stamps are modeled after them.
** Seven Star Pieces in ''VideoGame/SuperMarioRPG: Legend of the '''Seven''' Stars''.
** Seven Star Spirits in ''VideoGame/PaperMario64''.
** Seven Crystal Stars in ''VideoGame/PaperMarioTheThousandYearDoor''.
** ''VideoGame/SuperPaperMario'' has ''eight'' Pure Hearts, but you start the game with one of them, so you've still got to get seven.
** ''VideoGame/MarioKart7'', 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.
* ''Franchise/SonicTheHedgehog'':
** Seven Chaos Emeralds. There were six Chaos Emeralds in [[VideoGame/SonicTheHedgehog1 the first Sonic game]], though.
** Even when it's not Chaos Emeralds, there are seven MacGuffin-style items to collect. [[VideoGame/SonicStorybookSeries Seven Rings in Hand]], for example.
* Seven [[EverythingsBetterWithPrincesses Princesses]] of Purest Heart from ''Franchise/KingdomHearts''. And the seven Sleeping Keyholes from ''VideoGame/KingdomHearts3DDreamDropDistance''.
* Seven needles in ''VideoGame/{{Mother 3}}''.
* Seven personalities in ''VideoGame/{{Killer7}}'', along with a revolver that has seven chambers. The game is also divided into seven chapters.
* In ''VideoGame/ResidentEvil4'', a gun named [[NamesTheSame Killer7]] costs 77700 pesetas, and has initially a seven-bullet capacity.
* The ''VideoGame/{{Marathon}}'' trilogy established Creator/{{Bungie}}'s RunningGag of putting references to the number "7" in everything. [[http://marathon.bungie.org/story/seven.html Just look at this!]]
* Prominent in the ''Franchise/{{Halo}}'' series, due to this being a Creator/{{Bungie}} RunningGag:
** There have been whole groves of EpilepticTrees 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 [[spoiler: or were, before MC blew one up in the [[VideoGame/HaloCombatEvolved first game]]]].
** 343 Guilty Spark, the namesake of current franchise developers Creator/ThreeFourThreeIndustries. 343 is 7³. In fact, all the Halos' Monitors have designation numbers that are multiples of 7.
* All over the place with ''VideoGame/PunchOut'' 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, and sevens pop up in his challenges in Exhibition Mode. He's Irish, so it's a "lucky seven"/"luck of the Irish" gag.
* ''Franchise/FinalFantasy'':
** ''VideoGame/FinalFantasyVII'' (figures) has something interesting happen if a character's HP hits 7777. The Lucky Seven concept continues in the prequel ''VideoGame/CrisisCore'', where getting three Sevens on the Digital Mind Wave (the battle system's slot-machine gimmick) will level up your character.
** ''VideoGame/FinalFantasyIX'' contains the attack "Lucky 7s", a ShoutOut to the above.
* The seventh ''VideoGame/{{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 ''VideoGame/BattleGaregga'' 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 ''VideoGame/{{Tetris}}'': I, T, O, S, Z, L, J.
* In ''VideoGame/{{Gradius}} Gaiden'', stage 8 of the first loop has [[BossRush six bosses]]. On the second loop, it gains a [[ThatOneBoss seventh boss, Heaven's Gate]].
* ''Franchise/{{Pokemon}}'':
** The best you can get at the slots in the Game Corner is [[LuckySeven triple sevens]].
** In ''[[VideoGame/PokemonRedAndBlue 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.
** ''[[VideoGame/PokemonRubyAndSapphire 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 [[VideoGame/PokemonBlackAndWhite Generation V]], the villainous Team Plasma includes a group of high-ranking members known as the Seven Sages.
** ''VideoGame/PokemonMysteryDungeonExplorers of Time, Darkness, and Sky'' all feature the Seven Treasures, items which are obtained by defeating seven bosses that guard seven secret dungeons.
* ''Franchise/TheLegendOfZelda'':
** The seven sages in ''VideoGame/TheLegendOfZeldaALinkToThePast'', ''VideoGame/TheLegendOfZeldaALinkBetweenWorlds'' and ''VideoGame/TheLegendOfZeldaOcarinaOfTime'', and there ''were'' Seven Sages in ''VideoGame/TheLegendOfZeldaTwilightPrincess'' before [[spoiler: [[HijackedByGanon Ganondorf]] killed one of them]].
** The following games have exactly seven dungeons/stages each: ''[[VideoGame/ZeldaIITheAdventureOfLink The Adventure Of Link]]'', ''[[VideoGame/TheLegendOfZeldaTheWindWaker The Wind Waker]]'' and ''[[VideoGame/TheLegendOfZeldaSkywardSword Skyward Sword]]''.
** Seven Zora eggs in ''[[VideoGame/TheLegendOfZeldaMajorasMask Majora's Mask]]''. 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 and enter the Great Bay Temple has seven musical notes in its chorus.
** In the ''[[VideoGame/TheLegendOfZeldaOracleGames Oracle of Seasons]]'', there is a secret that requires the player to find 777 Ore Chunks.
* ''VideoGame/NoMoreHeroes'' references ''VideoGame/{{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 ''VideoGame/NoMoreHeroes2DesperateStruggle'', both training courses in Ryan's gym have seven levels each.
* In the backstory of the ''Franchise/DragonAge'' 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. [[spoiler:The Chantry's lore is all but confirmed in the VideoGame/DragonAgeII DLC "Legacy" with the appearance of Corypheus, one of the original Magisters, who acts as the FinalBoss.]] Each magister corresponded to one of the seven old gods, which means there should be seven blights. Possibly subverted, as there is speculation InUniverse to the existence of an eighth old god.
* The fifth case of ''VisualNovel/PhoenixWrightAceAttorney'' features a police ID that is all 7's. [[spoiler:That ID belongs to [[DaChief Police Chief]] Damon Gant, the murderer of both the current case and the SL-9 Incident.]]
* The number seven is huge in ''VideoGame/TalesOfTheAbyss''. 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 ArcNumber.
* In ''VideoGame/{{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...
* ''Videogame/FallenLondon'': [[ArcWords 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. [[spoiler: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. [[BodyHorror Seven are the scars]] [[WoundThatWillNotHeal that will not heal]]. [[GoMadFromTheIsolation Seven are the chains that weigh on Seeker's minds]]. [[DamagedSoul Seven are the stains that mark their soul]]. And at the end, there are seven [[ArtifactOfDoom candles]] they must collect]].
* ''VideoGame/Idolish7'' The titular idol group has 7 members
* In the mobile phone game ''VideoGame/LoveNikkiDressUpQueen'' 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.

[[folder:Visual Novels]]
* In the Holy Grail Wars of ''VisualNovel/FateStayNight'' and related works, the Grail chooses seven Masters, who summon seven Heroic Spirits as Servants, which manifest in seven different classes. [[spoiler: Although this rule seems to have some loopholes]]. Each Master also has [[RuleOfThree three]] Command Spells.

[[folder:Web Comics]]
* In ''Webcomic/KoanOfTheDay'', a reader receives 7 bodhi for every page they visit.
* In ''Webcomic/AmericanBarbarian'', Yoosamon has seven sons.
* ''Webcomic/{{xkcd}}'' has a number line strip that says 7 indicates a false statistic.
* In ''Webcomic/{{Erstwhile}}'', Maid Maleen is locked up for [[http://www.erstwhiletales.com/maidmaleen-02/#.T29xmdm6SuI seven years.]]
* In ''Webcomic/NoRestForTheWicked'', the soldier has to survive [[http://www.forthewicked.net/archive/04-20.html seven years]] to win his bargain with the devil.
* In ''Webcomic/CucumberQuest'', there are seven kingdoms of Dreamside, and the Nightmare Knight created [[http://cucumber.gigidigi.com/cq/page-151/ seven Disaster Masters.]]

[[folder:Web Original]]
* In WebVideo/TheAngryVideoGameNerd'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.
* ''WebVideo/PeanutButterGamer'' always has 7 people in his Hardcore series.
* ''WebVideo/PlayStationAccess'' has a weekly list video series about gaming, and almost all have seven entries for each respective topic.

[[folder:Western Animation]]
* Seven original members of the WesternAnimation/JusticeLeague.
* On ''WesternAnimation/WackyRaces'', car #7 is occupied by seven little men. Those same seven men appeared a year later on ''WesternAnimation/ThePerilsOfPenelopePitstop.''
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'':
** According to the [[TheMerch trading cards]], there are seven [[OnlyTheChosenMayWield 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 ''WesternAnimation/MyLittlePonyEquestriaGirls'', the main cast of the EG universe is now referred to as the [=HuMane=] 7.
* ''Disney/SnowWhiteAndTheSevenDwarfs:'' 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 ''WesternAnimation/TheFlightOfDragons'', Peter is said by Antiquity to be the 777th descendant of the Great Peter, who taught dragons to speak.
* ''WesternAnimation/MiraculousLadybug'' has the seven known 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.

[[folder:Real Life]]
* 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 [[AssPull contrivance]] of Sir UsefulNotes/IsaacNewton, a well-known scientist and not-well-known mystic. [[NewerThanTheyThink 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, [[http://blog.properrussian.com/2011/05/what-colors-are-there-in-your-rainbow.html 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).
* The number of daughters of Atlas in the Pleiades (also called the "Seven Sisters").
* And by analogy, "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.
** 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 [[http://en.wikipedia.org/wiki/List_of_cities_claimed_to_be_built_on_seven_hills whole list of them]].
* A 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.
* The reason Creator/IanFleming gave Literature/JamesBond the number 007 is because of RealLife 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 [[LuckySeven luckiest number]].
* In the event of a catastrophe that shuts it down, [[http://www.theguardian.com/technology/2014/feb/28/seven-people-keys-worldwide-internet-security-web fourteen people from around the world have been entrusted with seven keycards]] to restart the internet.
* 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.
* In the working world, this is often combined with the RuleOfTwo 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 [[BritsWithBattleships 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.