Earl Thomas Martineau (August 30, 1896 – January 20, 1966) was an American college football player and coach.

While at the University of Minnesota, Martineau was a member of Sigma Chi fraternity.

In 1932, Martineau began a long association with Fritz Crisler.

Martineau attended West High School in Minneapolis, Minnesota, from which he graduated in 1917.

He enlisted with the United States Marine Corps and served overseas from 1917 to 1919.