Walter Roy Bruner (February 10, 1917 – November 30, 1986) was a Major League Baseball pitcher.

Standing at 6 feet 0 inches (1.83 m) and 165 pounds (75 kg), Bruner played for the Philadelphia Phillies from 1939 to 1941.

Bruner left baseball to serve in World War II.

After the war he owned Bruner Aluminum Company, which manufactured storm windows until he closed the business at his retirement.

This biographical article relating to an American baseball pitcher born in the 1910s is a stub.