Ariel Olivetti 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.

The Punisher War Journal or Punisher War Journal is the title of two Marvel Comics comic book series featuring the character Frank Castle, also known as the Punisher. The first volume, published from 1988 to 1995, was spun off of a self-titled series featuring the vigilante's exploits.