| Work | Description | Characters |
|---|---|---|
| World of Warcraft: Legion | expansion set for the MMORPG World of Warcraft | 9 |
| World of Warcraft: Mists of Pandaria | expansion set for the MMORPG World of Warcraft | 4 |
| World of Warcraft: Rise of the Horde | book | 3 |
| World of Warcraft: Shadowlands | expansion set for World of Warcraft | 3 |
| World of Warcraft: The Burning Crusade | expansion set for the MMORPG World of Warcraft | 2 |
| World of Warcraft: The Shattering: Prelude to Cataclysm | novel of the Warcraft series | 3 |
| World of Warcraft: Thrall: Twilight of the Aspects | novel of the Warcraft series | 2 |
| World of Warcraft: Tides of Darkness | novel of the Warcraft series | 4 |
| World of Warcraft: War Crimes | novel of the Warcraft series | 6 |
| World of Warcraft: Warlords of Draenor | expansion set for the MMORPG World of Warcraft | 2 |
| World of Warcraft: Wrath of the Lich King | 2008 video game expansion | 8 |
| World Without End | book by Joe Haldeman | 5 |
| Worth Dying For | book by Lee Child | 1 |
| Would Jesus Wear a Rolex | single by Ray Stevens | 1 |
| Wreck-It Ralph | 2012 American animated film produced by Walt Disney Animation Studios | 4 |
| Writer Unknown | 1 | |
| Wu Cheng'en and Journey to the West | Chinese television series | 2 |
| Wuthering Heights | 1847 Book by Emily Brontë | 4 |
| X2 | 2003 American superhero film | 11 |
| X2: Wolverine's Revenge | 2003 video game | 1 |
| Xena: Warrior Princess | American–New Zealand fantasy series (1995–2001) | 1 |
| Xenocide | Novel by Orson Scott Card | 1 |
| X-Factor | 1986 comic book series | 2 |
| Xiaolin Showdown | television series | 1 |
| xkcd Loves the Discovery Channel | 442nd strip of the webcomic xkcd | 1 |
| X-Men | American animated television series from 1992–1997 | 10 |
| X-Men | American superhero film series | 2 |
| X-Men | 2000 film directed by Bryan Singer | 9 |
| X-Men | 1993 video game | 1 |
| X-Men 2: Clone Wars | video game | 1 |
| X-Men: Apocalypse | 2016 superhero film directed by Bryan Singer | 11 |
| X-Men: Children of the Atom | 1994 video game | 2 |
| X-Men: Days of Future Past | 2014 superhero film | 11 |
| X-Men: Evolution | television series | 11 |
| X-Men: First Class | 2011 superhero film directed by Matthew Vaughn | 7 |
| X-Men Legends | 2004 action role-playing video game | 3 |
| X-Men Legends II: Rise of Apocalypse | video game | 11 |
| X-Men: Madness in Murderworld | 1989 video game | 1 |
| X-Men: Mutant Academy | 2000 video game | 2 |
| X-Men: Mutant Academy 2 | 2001 video game | 2 |
| X-Men: Mutant Apocalypse | 1995 video game | 1 |
| X-Men Origins: Wolverine | 2009 superhero film directed by Gavin Hood | 6 |
| X-Men Origins: Wolverine (video game) | 2009 video game | 2 |
| X-Men: Pryde of the X-Men | television pilot | 6 |
| X-Men: Reign of Apocalypse | 2001 video game | 1 |
| X-Men: The Last Stand | 2006 superhero film | 10 |
| X-Men vs. Street Fighter | 1996 video game | 3 |
| X-Men: Wolverine's Rage | 2001 video game | 1 |
| Yakuman DS | 2005 video game | 1 |
| Yakuza | 2005 action-adventure video game | 2 |
| Yakuza | video game series | 1 |
| Yakuza 0 | 2015 video game | 1 |
| Yakuza 4 | 2010 video game | 2 |
| Yakuza 5 | 2012 video game | 2 |
| Yakuza 6 | 2018 video game | 2 |
| Yakuza Kiwami | action-adventure video game | 1 |
| Yakuza: Like a Dragon | 2020 role-playing video game developed by Ryu Ga Gotoku Studio | 2 |
| Yamada-kun and the Seven Witches | 2013 Japanese dorama | 2 |
| Yamada-kun and the Seven Witches | Japanese anime television series | 2 |
| Yamada-kun and the Seven Witches | Japanese manga series | 2 |
| Yandere Simulator | stealth action video game | 1 |
| Yatsuhakamura | 1971 novel by Seishi Yokomizo | 1 |
| Yellow Iris | short story by Agatha Christie | 1 |
| Yellowjackets | 2021 American television series | 1 |
| Yellowjackets, season 1 | season of television series | 1 |
| Yellowjackets, season 2 | season of television series | 1 |
| Yesterday's Son | book by Ann C. Crispin | 4 |
| Yip Yip Yippy | 1939 film by Dave Fleischer | 1 |
| Yoda: Dark Rendezvous | book by Sean Stewart | 1 |
| Yogi's Ark Lark | 1972 film | 1 |
| Yogi's Treasure Hunt | animated comedy television show | 1 |
| Yohane the Parhelion: Sunshine in the Mirror | Japanese multimedia project | 2 |
| Yondemasuyo, Azazel-san | Japanese anime and manga franchise | 1 |
| Yoshi's Island | 1995 platform video game | 3 |
| You | 2018 Netflix television series | 2 |
| You | 2014 thriller novel by Caroline Kepnes | 1 |
| Young Justice | American animated television series | 11 |
| Young Justice, season 2 | season of television series | 1 |
| Young Sheldon | American comedy series | 3 |
| You Only Live Twice | 1967 film by Lewis Gilbert | 1 |
| You're Not Built That Way | 1936 short film | 1 |
| Your Lie in April | Japanese manga series | 1 |
| Your Lie in April | Japanese anime television series | 3 |
| Your Name. | 2016 film directed by Makoto Shinkai | 2 |
| Your Turn To Die -Death Game By Majority- | 2017 horror video game | 16 |
| Yowamushi Pedal | Japanese television drama | 1 |
| Yowamushi Pedal | Japanese manga series | 1 |
| Yowamushi Pedal | Japanese anime television series | 1 |
| Yo Yogi! | television series | 1 |
| Yu-Gi-Oh! | 1998 manga and anime | 3 |
| Yu-Gi-Oh! | manga | 5 |
| Yu-Gi-Oh! | 1998 TV series | 3 |
| Yu-Gi-Oh! | 1999 film by Junji Shimizu | 1 |
| Yu-Gi-Oh! Duel Monsters | Japanese anime television series | 2 |
| Yu-Gi-Oh! GX | manga | 1 |
| Yu-Gi-Oh! GX | video game series | 1 |
| Yu-Gi-Oh! GX | Japanese anime television series | 2 |
| Yu-Gi-Oh! R | manga series | 2 |
| Yu-Gi-Oh!: The Dark Side of Dimensions | 2016 film | 2 |
| Yu-Gi-Oh! The Movie: Pyramid of Light | 2004 film by Hatsuki Tsuji | 2 |