Ariel Olivetti (born November 15, 1967 in Buenos Aires) is an Argentine comic book penciller best known for his work on American comic book titles such as Daredevil, X-Man, Space Ghost and Punisher War Journal.  His first American work was 1995's The Last Avengers Story, which was written by Peter David and published by Marvel Comics. Ariel Olivetti went on to have a brief stint as regular penciler 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 Ariel Olivetti 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.

Ariel Olivetti, in 2006 he signed an exclusive contract with Marvel Comics and launched the second volume of Punisher War Journal with writer Matt Fraction. Olivetti did art on the first ten numbers. Other work for Marvel includes the Cable ongoing series that debuted in March 2008, and more recently, Incredible Hulk, and Namor. In 2010, Olivetti signed a new contract with Marvel for one year, working on titles such as Iron Man 2.0 and the mini Hercules Fall of an Avenger. Throughout his career Olivetti has worked in different mediums, including black and white, digital color, acrylics and oils. Olivetti himself declared having been influenced by artists like Richard Corben, Simon Bisley and his fellow countryman Mauro Cascioli. The artwork of Ariel Olivetti is currently credited in 340 separate comic book issues.