->''"Monday's child is fair of face''\\
''Tuesday's child is full of grace''\\
''Wednesday's child is full of woe''\\
''Thursday's child has far to go''\\
''Friday's child is loving and giving''\\
''Saturday's child works hard for a living''\\
''And the child that's born on the Sabbath day''\\
''Is fair and wise and good and gay"''
--> -- Traditional NurseryRhyme

In many traditions, for a very long time, a handy shortcut to giving a child a MeaningfulName has been to name that child after one of the days of the week.

This is useful because each weekday has an array of meanings. Many European languages derive their names from the Roman practice of naming them after the [[Myth/ClassicalMythology Roman gods]], either by adopting the Roman names or by substituting them with similar local gods (e.g. [[Myth/NorseMythology Germanic gods]]). From the original Latin, we have Monday as "Dies Lunae", Moon's day, Tuesday is "Dies Martis", Mars' day, Wednesday is "Dies Mercurii", Mercury's day, Thursday is "Dies Iovis", Jupiter's day, Friday is "Dies Veneris", Venus' day, Saturday is "Dies Saturni", Saturn's day, and Sunday, "Dies Solis", which is... Sun day. See how it also fits AstronomicalThemeNaming?

This is easier to remember in Latinate languages. The days of the week in French, for example, are Lundi, Mardi, Mercredi, Jeudi, Vendredi, Samedi and [[OddNameOut Dimanche]]. In Spanish, those days are Lunes, Martes, Miercoles, Jueves, Viernes, Sabado, and Domingo. An exception but still easy is Portuguese, where considering Domingo is the first day, the five following it before Sabado are "[ordinal number]-feira" starting with second (Segunda, Terça[[note]]Though that's "third" as in fraction, in ordinal it would be "terceira"[[/note]], Quarta, Quinta, Sexta).

From the Germanic languages, we have Sunday as The Sun's day (Sunna), Monday as Moon day (Máni), Tuesday as Týr's day, Wednesday as [[ExpospeakGag Wotan's]]/Óðin's day, Thursday as Þór's day, and Friday as Freyja's day; in English, Saturday is unique in having a Latin-derived name, elsewhere it is bathing or pool day (Laugardagr). Hooray!

This pagan-based naming has ticked off the Catholic Church, so some countries with lots of Catholic influence will have boring names, based on what prayers should be done. Or even more mind-numbingly uninventive: long ago in Iceland, a Catholic bishop renamed Tuesday to "third day", Wednesday to "middle week day", Thursday to "fifth day" and Friday to "fasting day." The Quakers also used numbers for days of the week instead of honoring Pagan deities (Sunday was the first day, etc).

So, anyway, naming a character in this way is a good way to connect him to some of these previously described figures. Also, naming a character after a weekday may imply he is similar to the day's feel (See ''Series/{{Seinfeld}}''). Someone named Monday can't be fun, because ComicStrip/{{Garfield}} [[HatingOnMonday hates Mondays]], right? On the other hand, Saturday must be super fun to hang out with, and, ladies, he's single.

Another way is getting away with naming a character after a month. This is not as meaningful because some people actually do name their kids after months (April, May, June), and, not only that, we still use two month names originated by Roman emperors with considerably large egos (July and August, for Julius and Augustus).

See also TemporalThemeNaming, DaysOfTheWeekSong.


[[folder:Anime & Manga]]
* Friday Monday from ''Anime/{{Madlax}}''.
* In the [[StoryArc Alabasta arc]] of ''Manga/OnePiece'', the Baroque Works organization gives days of the week as {{Code Name}}s to its high-ranking female agents. (The very top female agents above them get codenamed after specific holidays.) Like many other names in ''One Piece'', there doesn't seem to be any [[MeaningfulName significance]] besides [[RuleOfCool sounding cool]].
* In ''Anime/DigimonXrosWars'', the epithets of the Death Generals each start with a kanji that corresponds to a day of the week. The first four appear out of chronological sequence (fire, moon, wood, water), but the last three are in order (gold, earth, sun).
* In ''Manga/KurokoNoBasuke'', each of the main members of the Seirin High Basketball Club (except for Kuroko), have a kanji corresponding to a day of the week in their name. In order starting from Sunday: Hyuuga(日), Izuki(月), Kagami(火), Mitobe(水), Kiyoshi(木), Koganei(金), and Tsuchida(土).
* The Italian adaptation of ''[[Anime/TimeBokan Yattodetaman]]'', called ''Calendar Men'', had a field day with this. Since the series' main theme is time travel, they decided to give everyone names related to days of the week, months and so on. For example, Mirenjo became Lunedì (Monday) and her little brother Komaro became Sabato (Saturday); her two lackeys were renamed Settembre and Ottobre, full names Primo Settembre and Due Ottobre ("September the First" and "October the Second"), the hero's wimpy alter ego Wataru Toki became Beppe Domani (something like "Joe Tomorrow")...

[[folder:Comic Books]]
* The main character of ''Comicbook/RogueTrooper'' [[ContinuityReboot reboot]] is named Friday.
* One of Creator/AlanMoore's one-shot strips for ''ComicBook/TwoThousandAD'' titled "Chronocops" which was modeled as a parody of ''Franchise/{{Dragnet}}'' with TimeTravel, saw a main character named Joe Saturday with a partner Ed Thursday. A detective from the Fraud Division is named Marv Wednesday, and Ed's grandmother has the name Tuesday.
* ''Comicbook/{{Legion of Super-Heroes}}'' member Mon-El (real name Lar Gand) was named that way because ComicBook/{{Superboy}} mistook him for his older brother (Lar had amnesia at the time) and they met on a Monday. (-El being Superboy's family surname.)
* Sort of applies to Creator/DCComics villain SolomonGrundy, who was (re)born on a Monday (and thus named after the famous nursery rhyme.)
* Franchise/{{Superman}} had a voodoo themed villain named Baron Sunday, presumably after the ''loa'' Baron Samedi, also known as Baron Saturday.
* There is Thursday and Friday (from ''Literature/RobinsonCrusoe's'' character, Friday) from the ComicBook/MickeyMouseComicUniverse.

[[folder:Fan Fic]]
* The Akutare brothers in ''FanFic/PrettyCurePerfumePreppy'', Getsuyo, Kayo and Suiyo, are named after the Japanese words for Monday, Tuesday and Wednesday (Getsuyoubi, Kayoubi and Suiyoubi).

* The preacher in ''Film/ThereWillBeBlood'' is named Eli Sunday.

* Literature/RobinsonCrusoe's native friend, Friday. Guess what day of the week they met? [[DontExplainTheJoke (Hint: It was Friday)]] And any parody thereof.
* The ''Literature/ThursdayNext'' books, of course. The eponymous heroine aside, her mother is Wednesday Next, her son is Friday Next, and her daughter is Tuesday Next.
* In ''Literature/TheTimeTravelersWife'', Gomez mentions that he and Charisse were going to name their daughter [[Series/TheAddamsFamily Wednesday]], but change their mind.
* ''Literature/TheManWhoWasThursday'' by Creator/GKChesterton, though there the days of the week are just the code names for the seven leaders of a secret anarchist society and not their actual names. [[spoiler: Rather than gods or nursery rhymes, the names are symbolic of the (slightly adjusted) Creation Week.]]
* Mr. Wednesday from ''Literature/AmericanGods''. The name is actually {{foreshadowing}} that he is actually [[spoiler:Odin (Odin>Woden>Weden's-day)]]. He even acknowledges it when he first gives his name as Wednesday, claiming that "Today is my day." This almost spoils his identity for anyone who already knows the origin of the day's name.
* From the Literature/{{Discworld}} novel ''Discworld/WitchesAbroad'', Mr./Baron Saturday, which like many Pratchett jokes works on multiple levels once you get the whole context.
** ''VideoGame/DiscworldNoir'' had Mundy, a parody of Thursby from ''Film/TheMalteseFalcon''.
* Wednesday Shadowmist, the heroine of ''[[Literature/TheEschatonSeries Iron Sunrise]]'' by Creator/CharlesStross.
* Mr. Monday from ''Literature/{{Stardust}}'', whose name ends up playing a role in the NoManOfWomanBorn ending.
* The eponymous heroine of ''Literature/{{Friday}}'' by Creator/RobertAHeinlein.
* Creator/SheriSTepper's ''Raising the Stones'' had siblings named after days of the week, but they didn't know what the words meant - their parents took them from an old list in an obsolete language, and thought they'd make good names.
* The trustees in Garth Nix's ''Literature/KeysToTheKingdom'' series are Mister Monday, Grim Tuesday, Drowned Wednesday, Sir Thursday, Lady Friday, Superior Saturday, and Lord Sunday. This was actually the very first thing that Garth Nix thought of, leading into everything else. The names just kind of fell into his head.
* In ''[[Literature/BlueAvenger Blue Avenger Cracks the Code]]'', one of Blue's childhood friends is named Tuesday.
* In the teen novel ''Adorable Sunday'', the protagonist explains that when she was born, her mother got the idea in her head that she should be called Sunday, on the grounds that she would grow up to be "somebody." (The plot focused on her brief career in modeling.)
--> '''Sunday's dad''': Besides, she was born today, and today is Thursday.
--> '''Sunday's mom''': I don't care. Sunday is a special day, and this is a special child. I can't help when she was born.
* The children's picture book ''Heckedy-Peg'' by Audrey and Don Wood features seven children named after the days of the week (the oldest is Monday, the youngest is little Sunday). Also notable for gorgeous illustrations and a dose of terrifying (the wicked witch turns the children into food and will eat them unless their mother can guess which food is which child).
* Brian Doyle's novel ''Spud Sweetgrass'' has a character named Mr. Friday, who, [[MeaningfulName appropriately enough]], runs a chain of chipwagons.
* ''Literature/WelkinWeasels: Gaslight Geezers'' shows Spindrick Sylver's anarchist group naming themselves after days of the week, which leads to an entertaining WhosOnFirst routine when he tries to ask "Saturday" for help and everyone assumes he's making an appointment for the next meeting.
* Guy Montag in Creator/RayBradbury's ''Literature/{{Fahrenheit 451}}'' (his surname is German for ''Monday'').
* ''Literature/ASeriesOfUnfortunateEvents'' has a few characters named after weekdays. The final book had Friday, with it being implied that an earlier character's name was Monday (and her father) and an unseen woman named Thursday.
* The young adult novel ''The Snowbird'' features a character named July, who explains that he had so many older brothers and sisters that his mother was completely out of ideas as to what to name him, so his father told her to just name him after the month in which he was born. Humorously, he adds, "Good thing I wasn't born in April."
* A short story in the ''ComicBook/{{Hellboy}}'' book ''Oddest Jobs'' discusses this. Hellboy, Liz, and another B.P.R.D. worker try to think of someone named Thursday, and Hellboy ends up telling a story of a man with the last name Thursday. [[spoiler:The man comes from a race of Thursday Men, who are trying to prevent the sinister and destructive Wednesday Men from coming through to our dimension.]]
* The hamlet folk in the book of ''Series/LarkRiseToCandleford'' nicknamed their farmer, Morris, "Old Monday". This got transferred to the TV series without the man's real name being mentioned.
* Sharon Creech's ''Bloomability'' stars a protagonist named Domenica Santolina Doone, or "Dinnie" for short. "Domenica" is Italian for "Sunday," her mother naming her such because she was born on a Sunday and that made her blessed. She certainly gets a lot of opportunities.
* In Creator/AletheaKontis's ''Literature/{{Enchanted}}'', all seven girls are named for the day they were born, and fit the rhyme.
* In ''Literature/TenSixtySixAndAllThat'', before the conversion of England, the Saxons worshiped gods named Monday, Tuesday, Wednesday, Thursday, Friday and Saturday.
* One kids' book, entitled "A Chicken Called Saturday", a chicken has seven chicks and names them all after the days of the week (Sunday hatched first and Saturday last).
* In ''Pitcairn's Island'', the third book of Literature/TheBountyTrilogy, Fletcher Christian's first child on the island is born on a Thursday in October, so Christian and his wife name the boy Thursday October Christian. This also happened in real life.

[[folder:Live Action TV]]
* Wednesday Friday Addams, of ''Series/TheAddamsFamily'', had the week's scariest name as her own.
* There was a ''Series/SquareOneTV'' sketch that was a parody of ''Series/TheAddamsFamily'', called The Adding Family. In it, the two (unseen) children were hit with a terrible (from their perspective... and maybe a little bit of ours, too) curse. One was Pugster; the other was ''Thursday''.
* In the new epic of our times, ''Series/That80sShow'', a punk rocker was named June Tuesday.
* ''GirlFriday''
* ''Franchise/{{Dragnet}}'' had Joe Friday.
** Parodied in the 1987 movie when his grandmother showed up. His maternal grandmother, Granny Monday.
** ''[[Series/SquareOneTV Mathnet]]'' had Kate Monday and Pat Tuesday.
* The MonsterOfTheWeek in the ''Series/BuffyTheVampireSlayer'' episode "The Freshman" is a vampire sorority girl named Sunday.
* In ''Series/MisterRogersNeighborhood'''s Land of Make-believe, there's the royal family: King [[PunnyName Friday XIII]], his wife Queen Saturday, and their son Prince Tuesday.
** In the spin-off ''WesternAnimation/DanielTigersNeihborhood'', the family was the same, plus a second son Prince Wednesday.
* One adaption of ''Literature/{{Snow White|AndTheSevenDwarfs}}'' has the Seven Dwarfs characterised as this.
* One ''Series/InspectorMorse'' episode has a female television presenter known as Friday. Her actual name is Frideswide. The prequel series ''Endeavour'' introduces us to Inspector Thursday, Constable Morse's MentorArchetype.
* The highest-ranking underlings of Tauzant in the [[Series/NinpuuSentaiHurricaneger Jakanja]] have such names: Manmaruba = Monday, Chuuzubo = Tuesday ("Chu-zu-de-i"), Wendinu = Wednesday, Sargain = Thursday ("Sa-zu-de-i"), Furabijo = Friday (Fu-ra-i-de-i), Satorakura = Saturday, Sandaru = Sunday
* In ''Series/MyHero'', Thermoman's ClarkKenting name is George Sunday. TheOtherDarrin takes the SecretIdentity George ''Monday''.
* ''Series/ShortlandStreet's'' Tuesday Warner.
* In Brazilian sitcom ''Sai de Baixo'', UpperClassTwit Caco Antibes referenced this trope while joking on how the lower classes of Brazil love foreign-sounding names: "I saw some great baby names in my calendar! Sunday, Monday, Tuesday..."

* ''Mister Saturday Night''
* The refrain of "She Came in Through the Bathroom Window" by Music/TheBeatles:
** Didn't anybody tell her/Didn't anybody see/Sunday's on the phone to Monday/Tuesday's on the phone to me."
** Don't forget that Monday's child has learned to tie his bootlaces in "Lady Madonna".
* [[http://en.wikipedia.org/wiki/The_Sundays The Sundays]]
* [[http://en.wikipedia.org/wiki/The_Saturdays The Saturdays]]
* [[Music/TheRollingStones Ruby Tuesday]].
* Music/HappyMondays
* Music/{{Thursday}}
* And on that note, The Weeknd with their second album, ''Thursday''.
* Music/TakingBackSunday

[[folder:Myth & Legend]]
* Baron Samedi, the Voodoo Loa, and any character inspired by him.
* Jewish lore says that when Esther became queen she gave her handmaids these names to help keep track of when it was the Sabbath. However, she felt that such simple names were degrading (keep in mind that in Hebrew, these would be "First-Day, Second-Day," etc. up until the Sabbath), so she instead named them after what God created on each particular day during the creation story.

* Monsieur Dimanche (Sunday), the creditor in ''Dom Juan'' by Molière. The reason for this name is unclear.

[[folder:Video Games]]
* ''VideoGame/DisgaeaHourOfDarkness'': Multi-Purpose Super-Robot Thursday!
* Giado Venerdi (Italian for "Friday"), Latooni Subota (Russian for "Saturday"), and Garnet Sunday from ''VideoGame/SuperRobotWarsOriginalGeneration''.
* Nigel the elf from ''VideoGame/{{Landstalker}}'' has a FairyCompanion named Friday.
* ''VideoGame/{{Killer7}}'' has a creepy, wide-eyed Remnant Psyche child who shows up just before the special Heaven Smile fight in each level named [[NamesToRunAwayFromReallyFast Kess Bloodysunday.]]
* In ''VideoGame/PokemonGoldAndSilver''/''Crystal'', there were seven [=NPCs=] whose names resembled days of the week and would only appear on the day of the week they resembled: Monica of Monday, Tuscany of Tuesday, Wesley of Wednesday, Arthur of Thursday, Frieda of Friday, Santos of Saturday, Sunny of Sunday.
* In ''VideoGame/DarkCloud'' there are a series of enemies named after the days of the week in Wise Owl Forest.

* ''Webcomic/CucumberQuest'' has the globetrotting thief, Saturday. She is a case of an OddNameOut, because her name doesn't really fit in with any of the kingdoms' ThemeNaming. [[spoiler:Later subverted when we found out that her real name is Princess Azalea, of the Flower Kingdom.]]

[[folder:Web Original]]
* Two from ''Roleplay/SurvivalOfTheFittest'', Wednesday Ryan and Wednesday Garci. Given this is a KillEmAll [=RP=], full of woe is quite apt.
* The eponymous Jack Saturday from Jesse Hajicek's [[http://www.fictionpress.com/s/2609068/1/Jack_Saturday_Cant_Fail ''Jack Saturday Can't Fail'']].

[[folder:Western Animation]]
* ''WesternAnimation/TheFlintstones'': "Hey, Tuesday Wednesday, what are you doing Saturday?"
* ''WesternAnimation/AquaTeenHungerForce:'' "Aqua Teens, come out and meet your doom, for we are Sunday-Monday-Tuesday-Wednesday-Thursday-Friday-Saturday!"
* The short-lived Nickelodeon cartoon ''WesternAnimation/TheXs'' featured teenaged daughter Tuesday X.
* The titular family of ''WesternAnimation/TheSecretSaturdays''.
** Don't forget their evil twins, The Mondays.
*** Who didn't really have a specific name; Zack decided to call them "the Mondays" because Monday (the first day of the work-week, or seeing as how he's just a kid, more likely the school week) is essentially the "opposite" of Saturday (the start of the weekend.)
* Mr. Monday, a particularly sillier supervillain who appeared a few times on ''WesternAnimation/TheVentureBrothers'' and was obsessed with Mondays. Like when The Monarch is masterminding a jailbreak scheme, Mr. Monday insists that they do it on a Monday.
* The ''WesternAnimation/LooneyTunes'' spoof of ''Franchise/{{Dragnet}}'', "Rocket Squad":
-->My name is Monday. My partner's name is Tuesday. He always follows me.
* Kwame in ''WesternAnimation/CaptainPlanetAndThePlaneteers'' probably fits-as stated below,'Kwame' means 'Saturday'.

[[folder:Real Life]]
* Actress Tuesday Weld, whose name the ''Flintstones'' example pastiched.
* Wednesday Burns-White of ''Blog/{{Websnark}}''.
* Nicole Kidman and Keith Urban named their daughter Sunday Rose.
* "Domenica", meaning "Sunday", is a common name in Italy. As is the Spanish equivalent Domingo, usually as the surname Dominguez.
** Aside for that, [[DefiedTrope Italian law openly opposes this trope]]: if the name is deemed [[EmbarrassingFirstName too embarrassing]] the clerk at the registry office can refuse to register it, as a court sustained when a couple tried to name their son Venerdì (Friday).
* There's a Goth model with the stage name [[http://memory-alpha.org/en/wiki/Wednesday_Mourning Wednesday Mourning]].
* British Pop band The Saturdays. And The Sundays.
* Day of the week names are VERY common in some parts of Africa. (Almost always as men's names.) This troper has personally met Several Tuesdays, Wednesdays, and Fridays; as well as more Mondays than you can shake a stick at. (I have also been told that Sunday, Saturday, and Thursday also get used. I just haven't met any.)
** In particular, there are names that you would usually name children if they were born on a certain day of the week. For example, Kofi for Friday, Kwaku for Wednesday, Kwame for Saturday, etc.\\
Two famous examples are former UsefulNotes/UnitedNations Secretary-General Kofi Annan and Ghanaian president Kwame Nkrumah (although the latter appears to have actually been born on a Tuesday, there may have been a mixup in the day reckoning).
** The same is frequent in Burma/Myanmar and Tibet.
* You know that joke where a man rides into town on ''day name'' and leaves ''another day name'' after staying some duration that doesn't add up? [[spoiler:The horse's name is one of the two days mentioned.]]
* Susan Sontag (German for Sunday).
* Chef Amanda Freitag
* The actress who played Kristen in ''Film/ANightmareOnElmStreet4TheDreamMaster'' has the memorable name of Tuesday Knight.
* Former MLB player and current Dodger radio play-by-play announcer Rick Monday.
* For a time leading up until around UsefulNotes/WorldWarI, there was an ongoing SerialEscalation in terms of number and weight of guns mounted on battleships (it eventually normed out at around three or four turrets, since this was the most you could practically mount without the guns blocking each other's fields of fire). Possibly the apex of this was HMS ''Agincourt'', originally designed for the Brazilian Navy with a [[MoreDakka main battery of seven turrets]]. Each turret was unofficially named for a different day of the week, with Sunday the foremost turret and Saturday the turret at the stern.[[note]]Under the traditional British system of turret naming, the bow-facing turrets would have been A and B, the center turrets P and Q, and the stern turrets X, Y and Z.[[/note]]