Andrew Michael Sonnanstine (born March 18, 1983 in Barberton, Ohio) is a starting pitcher for the Tampa Bay Rays. Sonnanstine is a graduate of Wadsworth High School in Wadsworth, Ohio, and attended Kent State University.

Sonnanstine made his first major league start against the Toronto Blue Jays, receiving a no-decision. He picked up his first major league win on June 10, 2007, in a game against the Florida Marlins.

Sonnanstine demonstrated strikeout potential in 2007 when, through seven innings of work against the Marlins, he struck out ten batters, including a franchise-record seven in a row, while allowing two runs on seven hits. He also went 2-for-3 as a batter, scored his first run and drove in his first career RBI.