William Street may refer to:
Streets
Australia William Street, Brisbane, Queensland William Street, Melbourne, Victoria William Street, Norwood, South Australia William Street, Perth, Western Australia William Street, Sydney, New South Wales
Ireland William Street, Limerick, Ireland
United States William Street (Carson City) in Carson City, Nevada William Street (Manhattan), New York City William Street Historic District, in Massachusetts
People William J. Street (1784–1847), Connecticut politician, father of William C. Street William C. Street (1816–1893), Connecticut politician, son of William J. Street William Douglas Street Jr., American con artist and impersonator
See also King William Street (disambiguation) William (disambiguation) Williams Street, an animation studio Williams Street Records, a record company William Streets (1772–?), English cricketer William Street tunnel