John William "Bud" Clancy (September 15, 1900 – September 26, 1968) was an American professional baseball first baseman. He played ten seasons in Major League Baseball (MLB) from 1924 to 1934 for the Chicago White Sox, Brooklyn Dodgers, and Philadelphia Phillies. While playing for the White Sox in 1930, Clancy became the first first baseman since 1891 to record no putouts or assists in a nine inning game.