Mark Evanier (born March 2, 1952, in Santa Monica, California) is an American animation writer. His writing credits for Hanna-Barbera include:
- Yogi Bear's All-Star Comedy Christmas Caper
- The Richie Rich/Scooby-Doo Show
- Scooby-Doo and Scrappy-Doo (1979 TV series)
Evanier was also a story editor for Richie Rich and a voice actor in the 2010 video short Scooby-Doo: The Whole World Loves You!.