Thornhill (surname)

Thornhill is a surname. Notable people with the surname include:

• Alan Thornhill (1921–2020), British sculptor
• Arthur Thornhill (1850–1930), English politician
• Batt Thornhill, Irish sportsperson
• Charles Thornhill (1814–1881), English cricketer
• Claude Thornhill (1909–1965), American pianist, arranger and bandleader
• Claude E. Thornhill (1893–1956), American college football player and coach
• Dorothy Thornhill (born 26 May 1955), British politician, Mayor of Watford
• Frederick Thornhill (1846–1876), English cricketer
• George Thornhill (MP) (1783–1852), English member of parliament
• George Thornhill (cricketer) (1811–1875), English cricketer
• James Thornhill (1675/6–1734), English painter
• Juan Thornhill (born 1996), American football player
• Leeroy Thornhill (born 1969), British electronic music artist
• Leonard W. Thornhill (1915–1942), American World War II Naval officer and pilot
• Lisa Thornhill (born 1962), American actress
• Matt Thornhill (born 1988), English footballer
• Michael Thornhill (1941–2022), Australian film producer, screenwriter, and director
• Nina Thornhill (born 1953), British chemical engineer
• Pauline Thornhill, host and producer of Canadian Broadcasting Corporation's longest running regional television program, Land and Sea
• Roland Thornhill (born 1935), Canadian politician
• Siri Thornhill, Norwegian soprano
• Thomas Thornhill (1837–1900), British politician
• Tom Thornhill (born 1952), American lawyer and politician
• William Thornhill (MP for Poole) (c. 1500 – 1557), English politician
• William Pole Thornhill (1807–1876), English politician and landowner

Fictitious

• Roger O. Thornhill, character played by Cary Grant in North by Northwest
• Ernest Thornhill, alias of The Machine in Person of Interest (TV series)