1915 Washington State football team

The 1915 Washington State football team represented Washington State University during the 1915 college football season as an independent. The offense scored 204 points while the defense allowed 10 points. Led by head coach William Henry Dietz, the team won the Rose Bowl on New Year's Day in Pasadena, California.

For the first of two consecutive years, Washington State did not play in-state rival Washington.