William Frederick Harris (March 6, 1918 – December 7, 1950) was a United States Marine Corps (USMC) lieutenant colonel during the Korean War. The son of USMC General Field Harris, he was a prisoner of war during World War II and a recipient of the Navy Cross for extraordinary heroism during the breakout in the Battle of Chosin Reservoir. He was last seen by American forces on December 7, 1950, was listed missing in action and is presumed to have been killed in action. Harris was featured in the book and film Unbroken.