Vansittart is a surname. Notable people with the surname include:
Cyril Vansittart (1852–1887), English-Italian chess player
Edward Vansittart Neale (1810–1892), English barrister
Henry Vansittart (1732–1770), English diplomat and Governor of Bengal
Nicholas Vansittart, 1st Baron Bexley (1766–1851), English politician
Peter Vansittart (1920–2008), English writer
Robert Vansittart, 1st Baron Vansittart (1881–1957), English diplomat
Robert Vansittart (jurist) (1728–1789), English jurist
Rupert Vansittart (born 1958), English actor
Sir Vansittart Bowater, 1st Baronet (1862–1938), English politician
William Vansittart Bowater (1838–1907), English businessman
