David Allen Tomlin is an American former professional baseball player. During his 13-season career in Major League Baseball, he was a relief pitcher for the Cincinnati Reds, San Diego Padres (1974–77), Montreal Expos and Pittsburgh Pirates. He also had a lengthy post-playing career as a pitching coach in the minor leagues.

The Cincinnati Reds are an American professional baseball team based in Cincinnati. The Reds compete in Major League Baseball (MLB) as a member club of the National League (NL) Central Division and were a charter member of the American Association in 1881 before joining the NL in 1890.