John Buscema (1927-2002) was an American comic book artist and one of the mainstays of Marvel Comics in its 1960s/1970s heyday. He was originally attracted to comics by Hal Foster's strip Prince Valiant, and his lush, detailed style bears comparison with Foster's.

Buscema's first hit was his run on The Avengers (beginning in 1966, with writer Roy Thomas), and after that pencilled at least one issue of every major Marvel title (with the notable exception of the X-Men). In particular, he stepped into the breach when Jack Kirby left the company in 1970, helping it weather the loss much better than it may have otherwise.

Among the best-known work of Buscema are stints on The Avengers (both in the 1960s and a long 1980s run); Fantastic Four (with Thomas and writer Gerry Conway); Thor (with Conway); Silver Surfer (with Stan Lee); and a lengthy run on Conan the Barbarian (with Thomas). This last he often named as his favourite, as ironically enough he disliked superhero stories.

Buscema semi-retired in 1996, although he continued to do the odd pencilling job; one of the last was his DC Comics debut, a Batman story.

John Buscema died in 2002.

His brother Sal Buscema is also a comic book artist.