William Light (1786–1839) was the first Surveyor-General of the Colony of South Australia.

William Light may also refer to:

• Bill Light (William C. Light, born 1949), American farmer and politician
• Billy Light (William Henry Light, 1913–1993), English footballer
• William Light (cricketer) (1878–1930), English cricketer
• William Light (Kansas politician) (fl. from 1999)
• William Sidney "Cap" Light (c. 1863 - 1893), Texas lawman

• Light (surname)

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