Clarence Lester "Biggie" Munn (September 11, 1908 – March 18, 1975) was an American football player, coach, and college athletics administrator.

Munn retired from coaching in 1953 to assume duties as Michigan State's athletic director, a position he held until 1971.

A 1932 graduate of the University of Minnesota, he played guard and fullback for the Golden Gophers under head coach Fritz Crisler.

Three years after his playing career ended, Munn got his first head coaching job at Albright College in Reading, Pennsylvania, where he stayed for two seasons (1935–1936), compiling a record of 13–2–1.

Munn served as head coach at Syracuse University for one season in 1946 before leaving for Michigan State.

Michigan State initially offered to let Notre Dame take 80 percent of the gate, but Cavanaugh insisted they split the receipts down the middle.

On the Michigan State dressing room wall, Munn hung a statement on fundamentals that his players were required to read before every home game: "Do not cheat your team or your teammates.

During the latter part of his coaching career, Munn developed the talents of Willie Thrower, the Big Ten's first black quarterback.

Shortly after the Rose Bowl victory, Michigan State's athletic director, Ralph H. Young retired.