Andrew Michael Knapp is an American professional baseball catcher in the Detroit Tigers organization and formerly with the Philadelphia Phillies. He was drafted by the Phillies in the second round of the 2013 Major League Baseball draft. Knapp made his big league debut in 2017.

The Phillies added Knapp to their 40-man roster after the 2016 season. Knapp hit the team’s first walk-off home run since 2016 on July 1, 2018, in the 13th inning against the Washington Nationals. In 2018, he batted .198/.294/.316 with 4 home runs and 15 RBIs.