A tradition as hallowed as the beach episode, and nearly as common, the Christmas anime episode is an opportunity to put anime boys and girls into festive (and often romantic) holiday situations. It works well for a variety of anime, particularly since Christmas mostly lacks the religious element that it has in the west, being more about love and family (and KFC) than faith. And it’s become increasingly common for anime series, especially those that have some slice of life or high school element to them, to have such themed episodes, where feasts, celebrations, and romantic “almosts” are commonplace. But there are some anime, also, in which Christmas is worked into the plot in a more critical way, either as a significant plot element in an episode, the setting for an arc, or in some cases, the background for an entire season or series.

As we move into the Christmas season and soon begin our annual 12 Days of Christmas Anime posts, I want to request your help. We’ve built a list of Christmas anime episodes, most taken from a forum post now long lost, and added to it over the years. But we know that it’s incomplete. In some cases, we’re missing episodes numbers or titles. And then there are simply entire anime we’ve forgotten or don’t know about.

Would you help us make this list of Christmas anime episodes more complete?

Please comment below with any that we’re missing, and we’ll update this list as a living document (and credit you as well)!

Note: Linked reference notes below lead to articles we’ve written about those specific Christmas episodes.

• .hack//Quantum (three OVAs)
• 009-1 (OVA) (Ep. 2) – “Holy Night”
• 7SEEDS (Ep. 7) – “Winter Solstice”
• Accel World (Bonus) (Ep. 7) – “Achel World Seven”
• Acchi Kocchi (Ep. 10) – “Bear Encounter ⇔ Lovelymas”
• Ace Attorney (Ep. 8) – “Turnabout Goodbyes – 1st Trial”
• Adachi to Shimamura (Ep. 6) – “White Album”
• After School Dice Club (Ep. 10) – “Happy Holy Night” [1]
• Aggretsuko (Ep. 11) – “We Wish You a Metal Christmas”
• Ai Yori Aoshi ~ Enishi (Special) – “Beautiful Snow” [1]
• Aikatsu! (Eps. 12, 114, 165) – “We Wish You a Merry Christmas!”, “Happy Tree Christmas☆,” “Luminas☆Christmas”
• Akage no An (Ep. 28) – “The Christmas Concert” [1]
• Amagami SS (Ep. 4, 8, 12) “Romance”, “Progress”, “Lovers”
• The Ancient Magus Bride (Season 1 Eps. 16-17, Season 2 Eps. 18, 19, 24) – “God’s mill grinds slow but sure.,” “Look before you leap.”, “Coming events cast their shadows before.”, “Man’s extremity is God’s opportunity.”, “The show must go on. I” [1]
• Angel Beats! (Ep. 7) – “Alive” [1, 2, 3]
• The Angel Next Door Spoils Me Rotten (Eps. 3, 4) – “Reward for the Angel” and “The Angel in the Christmas” [1, 2]
• Asteroid in Love (Ep. 8) – “Winter Diamond” [1]
• Astro Boy (Ep. 13) – “The Light Ray Robot”
• Azumanga Daioh (Ep. 17) – “December / Incredible Santa / Christmas Meeting” [1]
• B Gata H Kei (Ep. 4) – “Throbbing Christmas Eve. What Does a First Kiss Taste Like?”
• B Gata H Kei: Yamada’s First Time (Ep. 11) – “Year 2 Class H’s Christmas Eve! Take Me To Bed!” (via DaijoubuJoeKun)
• Baka to Test (Christmas special)
• Baka to Test to Shōkanjū (Ep. 8) – “Runaway and Maze and the Summoned Beast Instrumentality Project”
• Bakuman (Eps. 23-24) – “Winning and Losing,” “Imagination and Presentation” [1]
• Bakuon!! (Ep. 8) – “Winter Break” (via DaijoubuJoeKun)
• Bartender (Ep. 10) – “Christmas Miracle” [1]
• Big-O (Ep. 11) – “Daemonseed” [1, 2]
• Blend S (Ep. 12) – “I Love You!” (via DaijoubuJoeKun)
• Blue Period (Ep. 6) – “Serious Mental Breakdown” [1]
• Bobobo-bo Bo-bobo (Ep. 2) – “Let’s Get Wiggy With It”
• BOFURI: I Don’t Want to Get Hurt, so I’ll Max Out My Defense (Season 2, Ep. 1) – “Maxing Defense and Christmas”
• Bokura Ga Ita (Ep. 24) – Episode Twenty-Four
• Boys Be… (Ep. 11) – “The First Snowfall”
• Buddy Daddies (Ep. 1) – “Piece of Cake”
• Canvas 2: Niji Iro no Sketch (Ep. 23) – “Christmas Colored Decision”
• Cardcaptor Sakura (Eps. 35, 62) – “Sakura’s Wonderful Christmas, “Sakura, the Cards, and the Presents / A Present For the Cards” [1, 2]
• Cardfight!! Vanguard (Ep. 454) – “Examinees’ Merry Christmas”
• Carole & Tuesday (Ep. 21) – “It’s Too Late” [1]
• Cat Planet Cuties (Eps. 10-12) – “We Came After You,” “I Came Looking for You,” “I Came to Find You” (via Kuudere-kun)
• Charger Girl Ju-den Chan (Ep. 10) – “Present!?”
• Cheer Danshi!! (Ep. 7) – “Strain”
• Chi’s Sweet Home (Ep. 58) – “Chi Wishes Upon A Star”
• Chihayafuru (Ep. 23) – “The Night is Nearly Past” [1]
• Chocotto Sister (Ep. 24) – “Happy Christmas”  [1]
• Chrono Crusade (Ep. 12) – “Holy Night” [1]
• Citrus (Ep. 8) – “war of love”
• City Hunter 2 (Eps. 37-38) – “To Kaori From Ryo, With Love At Christmas: Episode 1”, “To Kaori From Ryo, With Love At Christmas: Episode 2” (via tomodachi-to-koibito)
• Clannad After Story (Ep. 10) – “Season of Beginnings” [1, 2, 3, 4]
• Classroom of the Elite (Season 2, Ep. 13) – “The worst enemy you can meet will always be yourself.”
• Comic Party (Eps. 12 and 13) – “Return of Brothers,” “Our Big Party” (via Kuudere-kun)
• Crayon Shin-chan (Eps. 32, 127, 213, 258) – “Action Mask and Xmas,” “Miss Yoshinaga’s Eve,” “Christmas Party with Schoolchildren / Selling Christmas Cakes / Looking Forward to My Present from Santa,” “Miss Matsuzaka is Not Alone on Christmas”
• Cyborg 009 (Ep. 11) – “Christmas Eve Mirage”
• Dai Guard (Ep. 13) – “Things That Can be Forgiven, Things that Can’t be Forgiven”
• The Dangers in My Heart (Ep. 10) – “We Walked Slowly”
• Deaimon: Recipe for Happiness (Ep. 9) – “Long-Awaited Warmth of Spring” [1]
• Death Note (Eps. 33-34) – “Scorn,” “Vigilance” [1]
• Delinquent Hamsters – “Christmas Eve Punks,” “Chris Moose is for Good Ham”
• Denkigai no Honya-san (Eps. 3, 9) – “Party Hard,” Snowy Night” (via DaijoubuJoeKun)
• Detective Conan (Ep. 42, OVA 2, Eps. 843-844, 885-886) – “Karaoke Box Murder Case,” “The Santa Claus of Summer” (via tomodachi-to-koibito), “The Detective Boys in a Grove (Part 1),” “The Detective Boys in a Grove (Part 2)”, “Solving Mysteries at the Poirot Café (Part One),” “Solving Mysteries at the Poirot Café (Part Two),” “The Shopping Center in Love” (via Kuudere-kun)
• Devil Lady  (Ep. 11) – “Box”
• Digimon Adventure 02  (Eps. 38, 42) – “A Very Digi-Christmas  (Holy Night the Digimon Big Gathering!),” “Digimon World Tour, Part 3 (Love and Borscht, The Ferocious Battle)”
• Digimon Universe: Appli Monsters (Ep. 13) – “The Christmas Disappeared!? The Calendar Thief Calendarmon!”
• Dinosaur King (Ep. 45) – “Santa Saurus!”
• The Disappearance of Haruhi Suzumiya (Movie) [1, 2]
• The Disappearance of Nagato Yuki-chan (Eps. 1-2) – “Precious Place,” “Joy to the World”
• The Disastrous Life of Saiki K. (Season 1 Ep. 32, Season 2 Ep. 1) – “Frolic! Silent Night,” “Another Christmas Challenge!”
• Don’t Toy With Me, Miss Nagatoro 2nd Attack (Ep. 6) – “How Are Your Fortunes This Year, Senpai?” [1]
• Doraemon (Ep. 486, 87, 488, 489, 643, 652, 692, 956, 1332, 1428, 1523 – “Day Changing Calendar,” “Nobita and Doraemon’s Christmas (part 1),” “Nobita and Doraemon’s Christmas (part 2),” “Mini Santa,” “Nobita’s Christmas Play,” “Snow in March,” “Flying Christmas,” “Time Skipping Pulley,” “Santa’s Chimney,” “Santa Mail,” “Santa Bag and Christmas,”
• Dr. Slump Arale-Chan (Ep. 35, 87, 138, 162, 236) – “Bad Bad Santa,” “Arale the Super Prize Girl,” “Painful Christmas Day,” “The Christmas Lie,” The Horror of Black Santa!!” (via Matthew Lucas)
• Dr. Stone  (Ep. 21) – “Spartan Crafts Club” [1]
• Dropkick on My Devil! (Ep. 3) – “Episode 3”
• D.N.Angel (Ep. 25) – “The Black Wings”
• The Duke of Death and His Maid (Ep. 9) – “The Duke, Alice, and the Christmas Eve Vow” [1]
• Ef – A Tale of Melodies (Series) [1]
• Ef – A Tale of Memories (Series) [1]
• Excel Saga  (Ep. 12) – “Big City Part II”
• Di Gi Charat  (Eps. 16, 21) – “Usada Explodes,” “Di Gi Charat Christmas Special”
• Doki Doki School Hours (Ep. 7) – “Santa Girl and New Years’ Fun” (via lancernolancing)
• Fairy Tail (OVA) – “Fairies’s Christmas”
• Fate/Grand Order -MOONLIGHT/LOSTROOM-
• Flint the Time Detective (Ep. 13) – “Cavemen’s Christmas”
• Food Wars (Ep. 79) – “A Midsummer Christmas”
• Fresh Pretty Cure! (Ep. 45) – “We are Four Pretty Cures! Separation in Christmas Eve!!”
• Full Moon wo Sagashite  (Ep. 37) – “A Present from Full Moon” [1]
• Futari wa Pretty Cure (Ep. 44) – “A Holiday Visitor / I Couldn’t Be Happier!? Nagisa’s White Christmas”
• Futari wa Pretty Cure Max Heart (Ep. 42) – “A Rink Full of Sweethearts? Slipping and Falling into Grave Danger!”
• Futari wa Pretty Cure Splash Star (Ep. 45) – “Cake, Kazuya and Christmas!”
• Gabriel DropOut (Ep. 9) – “Christmas and New Year’s Eve Surprise”
• Gakuen Babysitters (Ep. 12) (via DaijoubuJoeKun)
• Gal & Dino (Ep. 1-2) – “Nice to Meet You! & Look, Kitties!”, “My Friend’s Coming Over & I Ran Into Your Ex” (via lancernolancing)
• A Galaxy Next Door (Ep. 8) – “Christmas with the Princess”
• Ghost Hunt (Ep. 12-13) – “FILE 5: Silent Christmas Part 1,” “File 5: Silent Christmas Part 2”
• Gintama (Eps. 37, 200-201) – “People Who Say That Santa Doesn’t Really Exist Actually Want to Believe in Him,” [1, 2] “Santa Claus Red Is Blood Red,” “Everybody’s A Santa” (via squirrelstothenuts)
• Girls Und Panzer das Finale (Part 3) (via Kuudere-kun)
• Golden Time (Ep. 24) – “Golden Time”
• Golgo 13 (Ep. 37) – “Christmas 24 Hours”
• Gosick (Ep. 22) – “A Christmas Carol Decorates the Windowsill’s Happiness”
• (MS) Gundam 0080: War in the Pocket (Ep. 5) – “Say it Ain’t So, Bernie!” [1]
• Gundam Wing: Endless Waltz (OVA)
• Gunparade March  (Ep. 12) – “Whenever You Say Goodbye”
• Gunslinger Girl (Ep. 4) – “Bambola – Doll”
• Hamtaro (TV)  (Eps. 25, 77, 129, 180, 231, 232, 283) – “Merry Christmas!,” “A Wonderful Santa Claus!,” “Mimi’s Christmas,” “The Mysterious Gift,” “Arriving to Your Smile!,” “It’s Santa,” “Merry Christmas!,” “A Christmas Ride!”
• Happy Lesson (OVA)  (Ep. 3) – “Unsettling – Happy Mamas!”
• Hanamaru Kindergarten (Ep. 12A) – “A Hanamaru Christmas” (via DaijoubuJoeKun)
• Haven’t You Heard? I’m Sakamoto (Ep. 10) – “Demon Lord” [1]
• Hayate the Combat Butler (Ep. 1) “‘Unmei’ In English Is ‘Destiny'” [1]
• HeartCatch PreCure! (Ep. 44) – “A Christmas Miracle! We Met Cure Flower!”
• Heaven’s Lost Property (Ep. 13) – “Queen of the Sky”
• Hello Kitty & Friends (OVA) – “Santa’s Missing Hat” (via trunkschan)
• Hello Kitty’s Furry Tale Theater (Ep. 13) – “The Year Scroogenip Swiped Christmas” (via trunkschan)
• Hetalia  (Eps. 28, 31) – “In The World,” “Academy Hetalia Christmas” [1]
• Hetalia World Series (Eps. 19-20) – “How Everyone Spent Their Christmas,” “America and Christmas”
• Hidamari Sketch (Ep. 12) – “December 25: Goodbye Ume-sensei”
• Himouto! Umaru-chan (Ep. 8) – “Umaru and Christmas and New Year’s” [1, 2]
• Hinako Note (Ep. 11) – “From One Year To The Next” (via DaijoubuJoeKun)
• Honey and Clover (Ep. 4, 9) – “Actually, I don’t like Christmas all that much… …” [1, 2], “Did she notice? Why is it that I don’t tell her? / That brooch was so heavy”
• Horimiya (Ep. 12) – “Hitherto, and Forevermore” [1]
• How Heavy Are the Dumbbells You Lift? (Ep. 10) – “Do You Like Christmas?” [1]
• I Can’t Understand What My Husband is Saying (Ep. 12) – “Fusion Sage Day” [1]
• The Ice Guy and His Cool Female Colleague (Ep. 8) – “The Little Sister Appears! Christmas on the Slopes”
• Ichigatsu ni wa Christmas (OVA) (via trunkschan)
• The Idolm@ster (Ep. 22) – “On Christmas Eve” [1, 2]
• The Idolm@ster Cinderella Girls (Ep. 24) – “Barefoot Girl.” [1]
• I”s Pure (Ep. ??)
• Ichigo Mashimaro/Strawberry Marshmallow (Ep.12) – “Present”
• If Her Flag Breaks (OVA) – “Christmas? Do You Think I’d Make Use of Something Like That?” (via DaijoubuJoeKun)
• If I See You in My Dreams (OVA) (Ep. 3) – “One Snowy Christmas Eve…”
• Invaders of the Rokujyoma!? (Ep 12) – “Invasion Going Well!?”
• Irresponsible Captain Tylor (OVA) (Ep. 6) – “White Christmas” [1, 2]
• Is the Order a Rabbit? (Ep. 11) – “The Girl Dons a Red Coat and Drives a Team of Rabbits Across the Christmas Eve Night Sky” [1, 2]
• Is the Order a Rabbit? BLOOM, episodes 10-11
• Itsudatte My Santa! (OVA) [1]
• Jeanie with Light Brown Hair (Ep. 25) – “Alone on Christmas Eve”
• Jewelpet (Ep. 38) – “Merry Merry ☆ – Santa Comes to Town”
• Josee, the Tiger and the Fish (Movie)
• Joshiraku (Ep. 11c) – “Tree Tragedy” (via SteelSakura)
• K-On! (Ep. 7) – “Christmas!” [1]
• Kaguya-sama: Love is War -The First Kiss That Never Ends- (Movie)
• Kaitou Saint Tail (Ep. 12) – “Surprise! The Large Lizard Santa Claus?!” (via tomodachi-to-koibito)
• Kakushigoto (Ep. 9) – “Your Lie in December” (via DaijoubuJoeKun)
• Kamichu (Ep. 13) – “We Do What We Want” [1]
• Kämpfer (Ep. 12) – “Their Christmas: The Entrails’ Miracle”
• Karin (Ep. 19) – “A Couple’s Eve is Embarrassing” [1]
• Kashimashi: Girl Meets Girl (OVA)
• Kerropi and Friends (OVA) – “The Christmas Eve Gift”
• Kids on the Slope (Ep. 4, 9) – “But Not for Me” [1], “Love Me or Leave Me” (via Shane Zeagman)
• Kill Me Baby (Ep. 10) – “Santa Icicle Snow Mantra”
• Kimagure Orange Road (Ep. 38) – “Kyosuke Timetrips! The Third Christmas”
• Kimi ni Todoke (Ep. 22) – “Christmas” [1, 2, 3]
• Kin-iro Mosaic (Ep. 11) – “Try and Guess How Much I Like You”
• Kissxsis (OVA, Ep. 2) – “Christmas for Two”
• Kobato (Ep. 19) – “…White Christmas.” (via art-of-wandering)
• Kodocha (Ep. 38, 89) – “The Special Christmas Kiss,” “Hallelujah on X-mas eve? My heart…” [1, 2]
• Koi Kaze (Ep. 9) – “Wind Flower”
• Koikimo (Ep. 4) – “On This Holy Night”
• Komi Can’t Communicate (Ep. 16) – “It’s just a merry Christmas.” (via MarcOntario) [1]
• Kotoura-san (Ep. 12) – “The Things I Want to Tell You”
• Kubo Won’t Let Me Be Invisible (Ep. 3) – “The Nobody’s Gift”
• Kurau: Phantom Memory (Ep. 8) – “Another Christmas” [1]
• Kyouran Kazoku Nikki (Ep. 21) – “Black Santa is Sleepless in the Night”
• The Legend of the Mystical Ninja (Ganbare Goemon) (Ep. 11) – “Santa Claus is a New Villain!” (via CancerDog)
• Linebarrels of Iron (Ep. 10) – “Over Drive”
• Little Witch Academia (Ep. 16) – “Pohjola’s Ordeal”
• Log Horizon  (Season 2, Eps. 5-10) – “Christmas Eve,” “A Lost Child at Dawn,” “The Suifū Maidens”(The Maidens of Watermaple),” “Akihabara Raid,” “The Changing Battlefield,” “Guild Master”
• Lord El-Melloi II’s Case Files {Rail Zeppelin} Grace note – S2 Special Episode: “Waver, Reunion, and the Magic Lantern“
• Love, Chunibyo & Other Delusions (OVA) – “Glimmering… Explosive Festival (Slapstick Noel)”
• Love Live! Sunshine!! (Season 2, Ep. 8) – “Hakodate” (via avatar-of-thevast)
• Love Hina (OVA) – Christmas Special [1, 2, 3, 4, 5]
• Love of Kill (Ep. 1) – “WHAT’S YOUR NAME?’
• Lovely Complex (Eps. 2, 10) – “The Ex-Girlfriend Love Triangle?!,” “A Confrontation With The Ex-Girlfriend?! The Epic Breast-Baring Battle!!”
• Lucky Star (Ep. 11) – “The Various Ways for Spending the Holy Night” [1]
• Lupin III: Pt. 2 (TV) (Ep. 12) – “The Sleight Before Christmas”
• Macross (TV) (Ep. 35, 64) – “Romanesque,” “Christmas is in the Hands of the Goddess” [1]
• Magic Kaito 1412 (Ep. 12) – “Holy Night: Two Kid the Phantom Thieves!” (via Kuudere-kun)
• Magical Girl Lyrical Nanoha A’s (Eps. 9, 11) – “Christmas Eve,” “A Gift for Christmas Eve”
• Magical Princess Minky Momo (Ep. 41) – “Please, Santa Claus”
• Magikano (Ep. 11) –  “Was it Really a Holy Night?”
• Mahoromatic: Something More Beautiful (Ep. 5) – “Will I Catch a Cold Tomorrow?”
• Maison Ikkoku (Eps. 2, 18. 39-40 –  “Love is in the Air? Which One Does Kyoko Love Best?”, “Kyoko’s Gift! What, You Mean It’s For Me?”, “Love Takes Guts! Godai’s Part Time Job Ploy!”, “A Bittersweet Favor! Budding Christmas Love!?” [1, 2]
• Mamotte Shugogetten (Ep. 10) – “I’ll Protect My Master from Christmas” (via Matthew Lucas)
• March Comes in Like a Lion (Ep. 10) – “Something Given (Part 1) / Something Given (Part 2)” [1, 2]
• Maria Watches Over Us (Season 4) (Ep. 7) – “Blank Map of the Future”
• Marmalade Boy (Eps. 40-41) – “A Holy night. I’m alone on Christmas Eve/The morning of lovers. Merry Christmas”
• Martian Successor Nadesico (Ep. 13) – “There Is No Single Truth”
• Mermaid Melody Pichi Pichi Pitch (Ep. 38) – “A Christmas Present”
• Mermaid Melody Pichi Pichi Pitch Pure (Ep. 38) – “Battle on Christmas Eve”
• Minami-ke (TV) (S1 Ep. 12, S2 Ep. 11) – “Of Christmas And Eves,” “The Goddess Descends on the Holy Night” [1] (via Stephen Brandon)
• Miss Caretaker of Sunohara-Sou (Ep. 12) – “Kotatsu, Year End, Santa” (via DaijoubuJoeKun)
• Miss Kobayashi’s Dragon Maid (Ep. 10) – “Troupe Dragon, On Stage!  (They Had A Troupe Name, Huh)” [1, 2]
• Mitsudomoe (S1 Ep. 9, S2 Ep. 2) – “Santa Claus is my Eccentricity,” “The Marui House Is Full” (via DaijoubuJoeKun)
• Mother of the Goddess Dormitory (Ep. 8) – “Kiriya Wishes Upon A Christmas” (via DaijoubuJoeKun)
• Momokuri (Eps. 23-24) – “Excitement! Christmas,” “To the Day of a Cold: Part 2”
• Mori no Tonto-tachi (TV series) via trunkschan
• Motto! Ojamajo Doremi (Ep. 45) – “Merry Christmas with Everyone!” (via Henry, comments)
• Motto To Love Ru (Ep. 9) – “For Whom The Bell Tolls” (via DaijoubuJoeKun)
• Ms. Vampire Who Lives in My Neighborhood (Ep. 10) – “The Vampire and the End of the Year”
• My Clueless First Friend (Ep. 11, “The Swift Reaper Alliance, the Cursed Song, and Christmas,” and Ep. 12, “The Christmas Party Confession”)
• My Little Monster (Ep. 10) – “Christmas [1]
• My Love Story (Ep. 17) – “My Christmas” [1, 2]
• My Hero Academia (Ep. 101) – “Have a Merry Christmas!”
• My Senpai Is Annoying (ep. 3) – “And Then, It’s Christmas” [1]
• My Wife is a High School Girl (Ep. 26) – “I will always love you…”
• Mystic Messenger (Christmas DLC) – “Christmas Eve”
• Nekohiki no Oruorane (OVA) (via trunkschan)
• Neko Neko Fantasia (OVA) (via trunkschan)
• Nekopara (OVA) – “Nekopara OVA Extra”
• Neo Ranga (Eps. 35-36) – “What Happened to Christmas Eve?”, “Christmas in Crisis”
• Neo Yokio: Pink Christmas
• Nichijou (Ep. 22) – “Nichijou Episode 22” [1]
• Ninja Nonsense (Ep. 10A) – “The Ninjas Have Christmas”
• Nisekoi (Eps. 3-4) – “Need,” “Mother”
• Nodame Cantabile (Ep. 3) – “Lesson 3: Queen of Percussion”
• Nodame Cantabile: Paris (Ep. 5) – “Lesson 5: Chiaki and Nodame Cross Paths” [1]
• Nogizaka Haruka no Himitsu: Purezza  (Eps. 3-4) – “Ah, It Hurts…”, “Yūto’s Scent…” (via squirrelstothenuts)
• Odd Taxi (Ep. 11) – “If We Could Go Back to That Day”
• Oh My Goddess (OVA Eps.  4-5, Season 2 Eps. 3-5) – “Evergreen Holy Night,” “For the Love of Goddess,” “Ah! The Beleagured Queen of Vengeance!”, “Ah! I Offer These Feelings on Christmas Eve!”, “Ah! I Want to Fill the World With Happiness!” (via somewhatfast)
• Ojamajo Doremi (Ep. 45) – “Help Santa!” (via Henry, comments)
• Ojamajo Doremi Sharp (Ep. 44) – “A Happy White Christmas” (via Henry, comments)
• One Piece (?)
• Orange (Ep. 11) – “LETTER 11” [1]
• Oreimo (Season 1 Ep. 7, Season 2 Eps. 14-15) – “There’s No Way My Little Sister Can Write a Novel,” “I Can’t Confess to Her,” “My Little Sister Is This Cute”
• Oregairu (Season 2, Eps. 6-9) – “Without Incident, The Congress Dances, But Does Not Progress.”, “However, That Room Continues to Portray An Endless Everyday Scene.”, “Even So, Hikigaya Hachiman.”, “And So, Yukinoshita Yukino.” [1, 2]
• Our Dating Story: The Experienced You and the Inexperienced Me (Ep. 12) – “Our Experience Story: The Experienced You and the Inexperienced Me Get Experienced” (via S)
• Patlabor (TV) (Eps. 10-11) – “Eve’s Trap,” “Eve’s Terror” [1]
• Persona 4: The Golden Animation (Ep. 8) – “We’ve lost something important again”
• The Pet Girl of Sakurasou (Ep. 14) – “Windows and Lights on Christmas Eve” [1]
• Ping Pong (Ep. 6) – “You Love Table Tennis More Than Anyone Else!”
• A Place Further Than the Universe (Ep. 10) – “Partial Friendship” [1]
• Pokemon (Ep. 65) – “Holiday Hi-Jinx”
• Pokemon Chronicles (Ep. 4, 22) – “Pikachu’s Winter Vacation (Delibird’s Dilemma and Snorlax Snowman),” “Pikachu’s Winter Vacation (Christmas Night and Kanga Games)” (via lumranmayasha)
• Polar Bear’s Cafe (Ep. 37) – “Christmas Planning / Christmas Trouble”
• Popotan (Ep. 8) – “Christmas”
• Pretty Cure (Ep. 44) – “A Holiday Visitor”
• Pretty Cure: Max Heart (Ep. 42) – “A Rink Full of Sweethearts? Slipping and Falling into Grave Danger!”
• Pretty Cure: Splash Star (Ep. 42) – “Cake, Kazuya and Christmas”
• Pretty Rhythm: Rainbow Live (Ep. 38) – “The Happy Bell on Christmas Eve” [1]
• Prince of Tennis (Ep. 165) – “The Tenipuri Family Goes to Hawaii?! – Christmas at the Tenipuri Family”
• Punch Line (Ep. 3) – “Mars Attacks!”
• The Quintessential Quintuplets, season 2, episode 4 – “Seven Goodbyes Part 3”
• Rainbow Days (Ep. 1, 20) – “Episode 1”, “Episode 20” [1]
• Ranma 1/2 (OVA) (Ep. 2) – “Tendo Family Christmas Scramble”
• Ranma 1/2 (TV) (Ep. 75) – “Step Outside”
• Rascal Does Not Dream of a Dreaming Girl (Movie) (via Bob Aarhus)
• Re-Kan! (Ep. 6) – “A Super Awesome Holy Night” [1]
• Read or Die (Ep. 10) – “A Christmas Carol” [1, 2, 3]
• Recovery of an MMO Junkie (Ep. 1) -“♀IRL, ♂Online”
• Rental Magica (Ep. 12) – “Requiem for the Holy Night”
• ReLIFE (Ep. 16) – “Date” [1]
• Rent-a-Girlfriend (Ep. 8) – “Christmas and Girlfriend” [1]
• Rilakkuma and Kaoru (Ep. 9) – “Snowman” (via squirrelstothenuts)
• RIN-NE (Ep. 22) – “Christmas in the Derelict”
• Robotics;Notes (Ep. 15) – “I’ll Show You a Dream”
• Rock Lee & His Ninja Pals (Ep. 39) – “Christmas is the Last Chance for Love! / Cleanup is a Chance to Wash Away the Past!” [1]
• Sakura Quest (Ep. 20) – “The Phoenix in the Holy Night” [1]
• Sakura Trick (Ep. 8B) – “A Cherry Blossom-colored Christmas” (via DaijoubuJoeKun)
• Sailor Moon S: Hearts in Ice (Movie)
• Saiyuki Reload (Ep. 13) – “~Lovely Baby~ Just a Tiny Tiny Story” [1]
• Samurai Pizza Cats (Ep. 48) – “The Cheese Who Stole Christmas / Nyankii Santas Fly Through the Air” (via squirrelstothenuts)
• Santa Claus Tsukamaeta! (OVA) (via trunkschan)
• Santa no Yama Yousei no Mori (OVA) (via trunkschan)
• School Days (Ep. 11) – “Everyone’s Makoto” (via elmikkino)
• School Rumble (Ep. 19) – “Here, There, Everywhere Is Christmas! Bravely Moving Forward For Christmas! Shatter, Christmas!” [1]
• Science Ninja Team Gatchaman (Ep. 64) – “A Christmas Present of Death”
• Seitokai Yakuindomo (Ep. 11) – “Santa’s Sexual Desires”
• Senran Kagura Shinovi Master (Ep. 1) – “CHANGE THE WORLD”
• Sgt. Frog (Ep. 39, 90, 192) – “Keroro Christmas Battle,” “Keroro Spring Cleaning Battle,” “Keroro, I Cannot Say Merry Christmas,” “Keroro, Christmas Prevent!/Keroro Platoon Cake is a Man’s Battlefield!”
• Shaman King, 2021 (Ep. 20) – “Joco’s Christmas” (via art-of-wandering)
• SHIROBAKO (Ep. 12) – “Exodus Christmas” [1]
• Shōnen Santa no Daibōken (TV series) (via trunkschan)
• Shugo Chara (Ep. 10, 12, 13) – “Character Transformation!”, “Amulet Clover!”, “Sad Christmas Eve!”, “Big Disturbance! New Year Live!” [1, 2]
• Sing Yesterday for Me (Eps. 9-10) – “Christmas Carol,” “A New Year of Beginnings” [1, 2]
• Sister Princess (Ep. 20) – “Christmas Love Destiny”
• Sleepy Princess in the Demon Castle (Ep. 12) – “Sleeping Princess of the Demon Castle” [1]
• The Slime Diaries (Ep. 11) – “Where is Santa Claus?” (via DaijoubuJoeKun)
• SoniAni: Super Sonico The Animation (Ep. 11) – “A Saint Comes to Town” (via eyevocal)
• Space Brothers (Ep. 96) – “Astronaut and Father” [1]
• Steins;gate 0 (Ep. 3) – “Protocol of the Two-sided Gospel: X-Day Protocol”
• Stellvia (Ep. 12) – “Confession”
• Strawberry 100% (Ep. 14) – “Christmas of Past Loneliness”
• Strawberry Marshmallow (Ep. 12) – “Present”
• Super Gals! (Ep. 39) – “Holy Night! – Ring! Ring! – Emergency Bell of Love!”
• Sweet Blue Flowers (Ep. 11) – “Winter’s Fireworks”
• Sword Art Online (Ep. 3) – “The Red-Nosed Reindeer” [1, 2, 3, 4, 5]
• Tales of Little Women (Eps.21-22, 46) – “One Dollar Christmas Presents,” “A Christmas Dinner,” “A Very Merry Christmas” (via trunkschan90)
• Tamayura Hitotose (Ep. 11) – “A Christmas Eve Story♪”
• Teasing Master Takagi-san (Season 3, Ep. 9) – “Christmas”
• Tenchi Muyo: Daughter of Darkness (Movie)
• Those Who Hunt Elves (Ep. 21) – “Those Who Wait For Noel”
• To Heart (Ep. 12) – “The Season of Emotions” [1]
• To Heart: Remember My Memories (Ep. 10) – “A Long Night”
• Tōka Gettan (Ep. 9) – “Snow”
• Tokyo ESP (Ep. 1) – “White Girl”
• Tokyo Godfathers (Movie) [1, 2, 3, 4]
• Tokyo Majin Gakuen Kenpucho (Season 2, Ep. 6) – “Militant Fist Chapter: A Christmas Eve Without Smiles”
• Tokyo Mew Mew (Ep. 37) – “The Shining Tear: Celebrating Christmas with just the Two of Us”
• Tomo-chan is a Girl! (Ep. 13) – “To Stay by Your Side…” [1]
• Toradora (Eps. 17-19) – “Mercury Retrogrades at Christmas,” “Under the Fir Tree,” “Christmas Eve Festival” [1, 2, 3, 4, 5, 6, 7, 8, 9]
• Toriko (Ep. 87) – “Merry Feasttmas! Gourmet Santa’s Present!”
• Tsuki ga Kirei (Ep. 11) – “An Encouragement of Learning” [1]
• Urusei Yatsura (Eps. 10, 79) – “Pitter-Patter Christmas Eve,” “Mendo Family – Summer Christmas”
• Usagi Drop (Ep. 3.5) – “Dear Santa” [1, 2, 3]
• Uta no Prince Sama (Season 2, Ep. 14) – “Shining Star X-Mas” [1]
• Vandread (Ep. 10) – “White Love” [1]
• The Wallflower (Ep. 12) – “Oh, My Sweet Home!”
• Wedding Peach DX (OVA) (Ep. 3) – “Reunion ~ We Even Fight on Christmas ~”
• When Will Ayumu Make His Move? (Ep. 4) – “I Want to Spend Time Together, Senpai”
• White Album (Eps. 12, 13, 21) – “To bind. To deceive. To take away. To give. What’s most painful is to wait.”, “The vase was leaning toward one side, yet you didn`t notice? Because there was not even a drop of water left.”, “I think I want to return to the crossroad. Would have been better if I had chosen the right one. That journey filled only with regret.” (via Kuudere-kun)
• Why the Hell Are you Here, Teacher? (Ep. 10) – “Tenth Period”
• Winter Garden (TV)
• The World God Only Knows (Ep. 6) – “Flag.6.0 I’m Ordinary?”
• Wotakoi (Ep. 6) – “Bleak Christmas” [1]
• Yawara (Eps. 116-117) – “Rich Idiot!”, “The Greatest Present”
• Yes! Pretty Cure 5 (Ep. 42) – “Nozomi and Coco’s Christmas Vow”
• Yes! PreCure 5 GoGo! (Ep. 44) – “Open! Everyone’s Present!”
• Yo-kai Watch (Season 2, Ep. 23) – “A Very Christmas / The Koma-Santa Clause / Yo-Kai Ol’ Saint Trick”
• You’re Under Arrest (Ep. 11) – “Santa Claus Panic” [1]
• Yuki Yuna is a Hero: The Great Mankai Chapter (S3, Ep. 5) – “Brightness Unleashed” [1]
• Yumeiro Patissiere (Ep. 12) – “The Seven Year Merry Christmas!”
• Yuri on Ice (Ep. 11) – “Gotta Super-Supercharge it! Grand Prix Final Short Program”
• Yuri Yuri (Ep. 7) – “Christmasery”
• Yuru Camp  (Eps. 11-12) – “Christmas Camp!”, “Mount Fuji and the Laid-Back Camp Girls” [1, 2]