George Albert Hammes (September 11, 1911 – April 11, 1993) was an American bishop in the Roman Catholic Church.
Born in St. Joseph, Wisconsin, Hammes was ordained to the priesthood for the Roman Catholic Diocese of La Crosse on May 22, 1937, at the Cathedral of St. Joseph the Workman.
He served as secretary to Bishop Alexander McGavick and taught religion at Aquinas High School in La Crosse, Wisconsin.
He then served as pastor of St. Leo Parish in West Salem, Wisconsin.
In 1985, Hammes retired; he died at a rest home in La Crosse, Wisconsin.