Frank Donald Croucher (July 23, 1914 – May 21, 1980), nicknamed "Dingle", was an American baseball shortstop. He played professional baseball from 1934 to 1942 and 1946 to 1947, including four seasons in Major League Baseball with the Detroit Tigers (1939–1941) and Washington Senators (1942). He was the Tigers' starting shortstop in 1939 and 1941. In four major league seasons, he appeared in 296 games and compiled a .251 batting average with 7 home runs and 86 RBI. He missed the 1943 through 1945 seasons due to service in the United States Army Air Forces during World War II.