William Vincent Swift (June 19, 1908 – February 23, 1969) was an American baseball player.

He was a pitcher for the Pittsburgh Pirates (1932–39), Boston Bees (1940), Brooklyn Dodgers (1941), and Chicago White Sox (1943) in Major League Baseball (MLB).

In 11 seasons he had a 95–82 win–loss record, 336 games (163 started), 78 complete games, 7 shutouts, 119 games finished, 20 saves, 1,6372⁄3 innings pitched, 1,682 hits allowed, 753 runs allowed, 651 earned runs allowed, 103 home runs allowed, 351 walks, 636 strikeouts, 36 hit batsmen, 11 wild pitches, 6,891 batters faced, 1 balk, a 3.58 ERA and a 1.241 WHIP.

Born in Glen Lyon, Pennsylvania, Swift died in Bartow, Florida, at the age of 60.

This biographical article relating to an American baseball pitcher born in the 1900s is a stub.