| Earl Insley | |
| Birth Date: | 26 October 1911 |
| Death Place: | east of Show Low, Arizona, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1932–1933 |
| Player Team2: | Arizona State–Flagstaff |
| Player Positions: | Halfback |
| Coach Sport1: | Football |
| Coach Years2: | 1934–1935 |
| Coach Team2: | Round Valley HS (AZ) |
| Coach Years3: | 1936–1939 |
| Coach Team3: | Holbrook HS (AZ) |
| Coach Years4: | 1940–1941 |
| Coach Team4: | Arizona State–Flagstaff (freshmen) |
| Coach Years5: | 1954–1955 |
| Coach Team5: | Arizona State–Flagstaff |
| Admin Years1: | 1949–1958 |
| Admin Team1: | Arizona State–Flagstaff |
| Overall Record: | 3–15 (college) |
Earl Frank "Jiggs" Insley Jr. (October 26, 1911 – January 29, 1958) was an American football coach and college athletics administrator. He served as the head football coach at his alma mater, Arizona State College at Flagstaff—now known as Northern Arizona University—from 1954 to 1955, compiling a record of 3–15. Insley was also the athletic director at Arizona State–Flagstaff from 1949 to 1958.
Insley attended Gallup High School in Gallup, New Mexico, from which he graduated in 1930.[1] At Arizona State–Flagstaff, he letterd in football and basketball.[2] In 1932, he completed a pass on a fake PAT to upset the Arizona Wildcats.[3]
Insley was killed in a car crash, on January 29, 1958, east of Show Low, Arizona.[1] [4]