William or Bill Jeffrey may refer to:
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Bill Jeffrey (born 1948), British civil servant
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William A. Jeffrey, American scientist
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William Jeffrey (cricketer) (1950–1993), Guyanese cricket player and coach
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William Jeffrey (footballer) (1866–1932), English footballer with Burnley, Arsenal and Southampton
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William Jeffrey (American soccer) (1892–1966), head coach of the 1950 United States World Cup team
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William Jeffrey (Tsimshian chief) (born 1899), hereditary Tsimshian Chief, First Nations activist and carver
* William Jeffrey, a pseudonym of writer
Bill Pronzini
Bill Pronzini (born April 13, 1943) is an American writer of detective fiction. He is also an active anthologist, having compiled more than 100 collections, most of which focus on mystery, western, and science fiction short stories. Pronzini is ...
{{hndis, Jeffrey, William