Joel "Jack" Nagle (1917 – August 15, 1990) was the head coach of the Marquette University men's basketball team from 1953 to 1958.

Born in Chicago, Illinois, Nagle was educated at Shorewood High School and at Marquette,[1] where he lettered in both the 1938–39 and 1939–40 seasons, as a reserve guard on the team.

Following graduation, Nagle served in the United States Army Air Corps (USAAC) from 1940–44.

In 1958, Nagle left the college coaching ranks and took a position at Whitefish Bay High School in suburban Milwaukee, Wisconsin, teaching freshman English grammar, composition and literature,[citation needed] and coaching the boys' varsity basketball team from 1962–1972 and the girls' varsity team from 1973–1989.

[1] Both his boys and girls teams made appearances in the Wisconsin state high school basketball tournament.

In 1986, he authored a popular coaching book titled Power Pattern Offenses for Winning Basketball.