William Jeffrey may refer to:
William Jeffrey (Tsimshian chief) (born 1899), hereditary Tsimshian Chief, First Nations activist and carver,
William Jeffrey (soccer coach) (1892-1966), head coach of the 1950 United States World Cup team,
William Jeffrey (NIST), 13th Director of the National Institute of Standards and Technology,
Sir Bill Jeffrey (born 1948), British civil servant,
William Jeffrey (footballer) (1868-?), English footballer with Burnley, Arsenal and Southampton,
William Jeffrey, a pseudonym of writer Bill Pronzini,
This disambiguation page lists articles about people with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article.