Claude William Passeau (April 9, 1909 – August 30, 2003) was an American starting pitcher in Major League Baseball. From 1935 through 1947, Passeau played with the Pittsburgh Pirates (1935), Philadelphia Phillies (1936–39) and Chicago Cubs (1939–47). He batted and threw right-handed. In a 13-year career, Passeau posted a 162–150 record with 1,104 strikeouts and a 3.32 ERA in 2,1792⁄3 innings.