William Jacobs may refer to: W. W. Jacobs (1863–1943), short story writer William H. Jacobs (1831–1882), Wisconsin legislator and banker Will Jacobs (born 1955), American comics writer William Elmer Jacobs, baseball player William Jacobs (producer) (1887–1953), film producer William R. Jacobs Jr. (born 1955), professor of microbiology, immunology and genetics