William, Billy or Bill Grey may refer to:

• William Grey (died 1551), MP for Reading
• William Grey, 13th Baron Grey de Wilton (died 1562), military commander
• Willam Grey (died 1574), MP for Bridgnorth
• William Grey, 1st Baron Grey of Werke (1593–1674), MP during 1621–22
• Sir William Grey (governor) (1818–1878), Governor of Bengal 1866–1871, Governor of Jamaica 1874–1877
• William Grey, 9th Earl of Stamford (1850–1910), scholar and philanthropist
• William Grey Walter (1910–1977), American-born neurophysiologist, cybernetician and robotician
• William G. Gray (1913–1992), ceremonial magician, Hermetic Qabalist and writer

• William Grey (bishop of Lincoln) (died 1436), also bishop of London
• William Grey (bishop of Ely) (died 1478), medieval English churchman
• William Henry Grey (1829–1888), African-American church leader and Reconstruction politician in Arkansas

• Bill Grey, Fox's dog friend in 1993's Star Fox
• Billy Grey, motorcycle club president in 2009's Grand Theft Auto: The Lost and Damned

• William Gray (disambiguation)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
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