Steven Lewis Montgomery (born December 25, 1970) is an American professional baseball former pitcher. He played for the Oakland Athletics from to , Philadelphia Phillies in , and San Diego Padres in .
A 1999 single in his only at-bat left Montgomery with a rare MLB career batting average of 1.000. He was traded along with Adam Eaton and Carlton Loewer from the Phillies to the Padres for Andy Ashby on November 10, 1999.