William Watt may refer to:
William Watt (athlete) (1886–1957), Irish Olympic athlete William Watt (Australian politician) (1871–1946), Premier of Victoria and Speaker of the House of Representatives William Watt (journalist), journalist working for the Blackpool Gazette William Watt (miner) (1828–1878), California Gold Rush mining executive and California politician William Watt (missionary) (1843–1926), Scottish missionary to the New Hebrides William Watt (rugby union), Welsh international rugby union player William Hogg Watt (1818–1893), member of parliament in the Manawatu region of New Zealand W. Montgomery Watt (1909–2006), Scottish historian and professor of Arabic and Islamic Studies William Redfern Watt (1813–1894), New South Wales politician Willie Watt (footballer, born 1861), Scottish footballer Willie Watt (footballer, born 1946), Scottish footballer Willie Watt (golfer) (1889–1954), Scottish golfer Willie Watt (Batman Beyond), a character from the animated series Batman Beyond Blackie Watt, American racing driver
See also William Watts (disambiguation)