James Willard McMillen (October 23, 1902 – January 27, 1984) was an American professional football player who was a guard for five seasons with the Chicago Bears of the National Football League (NFL).

He attended the University of Illinois where he played football, wrestled, and was a member of Sigma Pi fraternity.

He was a consensus All-American in 1923, All-Big Ten in 1922 and 1923, as well as team captain.

As a member of Illinois' wrestling team, he only lost one match in three years.

This biographical article relating to an American football offensive lineman born in the 1900s is a stub.