Carroll C. Widdoes (1903 – September 22, 1971) was an American football coach and college athletics administrator. He served as the head coach at Ohio State University (1944–1945) and Ohio University (1949–1957), compiling a career record of 58–38–5. Widdoes's 1944 Ohio State team went undefeated and was named a national champion by the National Championship Foundation and the Sagarin Ratings.