Alan Moore (born 18 November 1953) is an English writer primarily known for his work in comic books, a medium where he has produced series including Watchmen, V for Vendetta, and From Hell.Frequently described as the best graphic novel writer in history, he has been called "one of the most important British writers of the last fifty years".

Moore started out writing for British underground and alternative fanzines in the late 1970s before achieving success publishing comic strips in such magazines as 2000 AD and Warrior. He was subsequently picked up by the American DC Comics, and as "the first comics writer living in Britain to do prominent work in America", he worked on major characters such as Batman (Batman: The Killing Joke) and Superman ("Whatever Happened to the Man of Tomorrow?"), substantially developed the character Swamp Thing, and penned original titles such as Watchmen. From Hell, the pornographic Lost Girls, and the prose novel Voice of the Fire. He subsequently returned to the mainstream later in the 1990s, working for Image Comics, before developing America's Best Comics, an imprint through which he published works such as The League of Extraordinary Gentlemen and the occult-based Promethea.