William H. Davis (1 August 1900 – 5 December 1955) was an American politician.
Upon graduating from James M. Coughlin High School, Davis enrolled at La Salle Extension University to study accounting.
He served as deputy Luzerne County controller for a decade before taking office as a member of the Pennsylvania Senate in 1955.
Davis held the District 21 seat as a Democrat until 5 December 1955, when he died in office.
He was married to Edna Morrissey, a fellow Wilkes-Barre native.