Charles William Tollefson (February 28, 1917 – August 20, 1989) was an American football player who played collegiately for the Iowa Hawkeyes from 1938 to 1940 and professionally for the Green Bay Packers from 1944 to 1946.

A dispute about his pay after he was fired by the Packers resulted in a court decision important to professional athletic contracts in the United States.

[2] In June 1938, Tollefson returned to Iowa City, attending summer school to become qualified to play football that fall.

[1] Tollefson was part of the 1944 Green Bay Packers team that won the NFL Championship,[7] defeating the New York Giants 14–7.

Although his contract included an added provision providing a "minimum $3,600 for season" in the handwriting of Curly Lambeau, the team's general manager and head coach, the Packers only paid Tollefson a pro-rated $900 of the amount promised.