Bob Welch, American baseball player and coach (b. 1956)
Robert Lynn Welch (November 3, 1956 – June 9, 2014) was an American professional baseball starting pitcher. He played in Major League Baseball (MLB) for the Los Angeles Dodgers (1978–87) and Oakland Athletics (1988–94). Prior to his professional career, he attended Eastern Michigan University, where he played college baseball for the Eastern Michigan Hurons baseball team. He helped lead the Hurons, coached by Ron Oestrike, to the 1976 College World Series, losing to Arizona in the Championship Game.

Welch was a two-time MLB All-Star, and he won the American League Cy Young Award as the league's best pitcher in 1990. He was a three-time World Series champion - twice as a player and once as a coach. He is the last pitcher to win at least 25 games in a single season (27 in 1990).