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.

[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.

This biographical article relating to a college football coach first appointed in the 1940s is a stub.