| Frank Loebs | |
| Birth Date: | 10 January 1913 |
| Birth Place: | Cleveland, Ohio, U.S. |
| Death Place: | Cleveland, Ohio, U.S. |
| Player Years1: | 1932–1935 |
| Player Team1: | Purdue |
| Player Positions: | End |
| Coach Years1: | 1940–1941 |
| Coach Team1: | Washington University |
| Overall Record: | 7–11 |
| Awards: | All–Big Ten (1935) |
Frank John "Butch" Loebs (January 10, 1913 – June 13, 1977) was an American college football player and coach. He served as the head football coach at Washington University in St. Louis from 1940 to 1941, compiling a record of 7–11.[1] Loebs played college football at Purdue University as an end. He was a third-round pick for the New York Giants in the 1936 NFL draft but he never played in the NFL.[2] Prior to becoming head coach at Washington University, he served for three seasons as an assistant coach there.[3]
During World War II, he served in the United States Navy, reaching the rank of lieutenant commander.