Ariel Olivetti is an Argentine comic book artist, painter and penciller best known for his work on comic books such as Cable, Punisher War Journal, The Incredible Hulk, Daredevil, X-Man and Space Ghost.

His first American work was 1995's The Last Avengers Story published by Marvel Comics. He went on to have a brief stint as regular penciller on Marvel's Daredevil between 1997 and 1998, where he worked with writer Joe Kelly. His next major work was in 1998 when he worked with writer Steven Grant on the Warren Ellis devised "Counter X" revamp of Marvel's X-Man title. In 2005 he again collaborated with Joe Kelly on DC Comics Space Ghost limited series which revealed the character's origins for the first time.

Other titles he has worked on include Mystique and Sabretooth (1996), Alpha Flight (1997) and What If? (1997) at Marvel and JLA: Paradise Lost (1998), Haven: The Broken City (2002), Green Lantern (2003) and Batman: Legends of the Dark Knight (2006) at DC. In 2006 he signed an exclusive contract with Marvel Comics and launched the second volume of Punisher War Journal with writer Matt Fraction and Cable with writer Duane Swierczynski. Ariel is currently illustrating The Incredible Hulk. Throughout his career Olivetti has worked in different mediums, including black and white, digital color, acrylics and oils.