Guy Williamson

Guy M. "Chalky" Williamson (July 14, 1890 – December 8, 1930) was an American football player and coach. He served as the head football coach at Grove City College in Grove City, Pennsylvania from 1921 to 1923.

Williamson was the starting quarterback for the national champion 1915 Pittsburgh Panthers football team.

He later coached at Kiskiminetas Preparatory School. He died in 1930 at age 40.