Marc Turnesa (born March 19, 1978) is an American professional golfer playing on the PGA Tour. He is the grandson of Mike Turnesa who won six times on the PGA Tour.
Turnesa earned his PGA Tour card by finishing in the top-25 of the 2007 Nationwide Tour money list. His professional win was the 2007 Miccosukee Championship on the Nationwide Tour. He has had success as of late on the 2008 PGA Tour Fall Series, at the Viking Classic, he led the tournament for the entire week until he double-bogeyed the seventeenth hole on Sunday, and eventually lost in a playoff to Will MacKenzie. A month later, Turnesa captured his first PGA Tour win at the Justin Timberlake Shriners Hospitals for Children Open, winning by one stroke over Matt Kuchar. This victory secured his tour card for the 2009 and 2010 seasons.