William "Bill" Hess (February 5, 1923 – June 10, 1978) was the head coach of the Ohio Bobcats football team from 1958 to 1977. In his tenure at Ohio, Hess compiled a 107–92–4 record (.537), ranking him second only to legendary coach Don Peden on Ohio's all-time victories list. Hess's teams won four Mid-American Conference championships (1960, 1963, 1967, and 1968) and won a National Small College Championship in 1960 after having an undefeated season. Hess also led the Bobcats to two bowl games, losing 15–14 to West Texas State in the 1962 Sun Bowl and losing 49–42 to Richmond in the 1968 Tangerine Bowl. His 1968 team is the only team in school history to finish ranked in the major polls.