Walter E. Marks (February 16, 1905 – November 24, 1992) was an American football, basketball, and baseball player, coach, college athletics administrator, sports official, and university instructor.

Between 1927 and 1955 he served as the head football, basketball, baseball, and golf coach at Indiana State University, with hiatuses from 1930 to 1931, when he earned a master's degree at Indiana University, and from 1942 to 1945, when he served in the United States Army Air Forces during World War II.

Marks reached the rank of major in the United States Army Air Forces and spent 44 months in the Mediterranean Theater of Operations.

A three-sport performer, he earned a total of eight varsity letters in football, basketball, and baseball, was an ROTC Cadet Major, and held membership in several honorary fraternities.

As a sophomore, he played fullback for Chicago's last Big Ten Conference football championship team in 1924.

As a pitcher and an outfielder, he played on Chicago's baseball team for three years and had a .399 batting average as a sophomore.

While pitching for Terre Haute of the Three-I League, he defeated Carl Hubbell of Decatur in a 17-inning masterpiece.