Trinity

Comics

 * Trinity: A Graphic History of the First Atomic Bomb, a 2012 graphic novel by Jonathan Fetter-Vorm
 * Trinity (comic book), a 2008–2009 weekly series
 * "Trinity" (story arc), a 1993 DC Comics crossover series
 * Batman/Superman/Wonder Woman: Trinity, a 2003 three-issue series

Fictional entities

 * Trinity (comics character), a DC comics supervillain
 * Trinity (Team Tejas), an Azteca superhero
 * Trinity (The Matrix), a character in The Matrix franchise
 * Team Trinity, a group of Mobile Suit Gundam 00 characters
 * Trinity Ashby, Jax Teller's Irish half-sister in Sons of Anarchy
 * Trinity Killer, a Dexter character
 * Trinity Wells, a character from Doctor Who, Torchwood and The Sarah Jane Adventures
 * Trinity, the protagonist of the films They Call Me Trinity (1970) and Trinity Is Still My Name (1971), in addition to many unofficial sequels and spinoffs
 * Trinity, Lisbeth Salander's hacker friend and colleague in the Hacker Republic, e.g., see The Girl Who Kicked the Hornets' Nest

Film

 * Trinity (film), a 2001 science fiction film
 * Blade: Trinity, a 2004 action film