Harington is a surname, and may refer to:
Bridget Harington (1579–1609), English courtier
Charles Harington (chemist), Welsh chemist
Charles Harington (British Army officer, born 1872), British general
Charles Harington (British Army officer, born 1910), British general
Charles Richard Harington (1933–2021), Canadian zoologist
Dominic Harington (born 1984), English snowboarder
Donald Harington (writer) (1935–2009), American novelist
Edward Harington (politician) (c.1526–c.1600), English politician
Edward Harington of Ridlington (died 1652), English landowner
Edward Charles Harington (1804–1881), English churchman and writer
Elizabeth Harington (died 1618), English aristocrat
Ethelreda Harington, married name of Ethelreda Malte, alleged illegitimate daughter of Henry VIII of England
Hastings Edward Harington (1868–1916), British Indian Army officer and ornithologist
Henry Harington (1727–1816), English physician, musician and author
Henry Harington (soldier) (d. 1613), English soldier
Herbert Harington (1868–1948), English soldier and cricketer
Herbert Hastings Harington, British army officier and ornithologist
James Harington (1611–1677), English author
James Harington (lawyer) (c.1511–1592), English landowner and public servant
Sir James Harington, 1st Baronet of Ridlington, English landowner
Sir James Harington, 3rd Baronet of Ridlington (1607–1680), English landowner
John Harington, 1st Baron Harington (1281–1347)
John Harington, 2nd Baron Harington (1328–1363)
John Harington, 4th Baron Harington (1384–1418)
John Harington (died 1553), English treasurer
John Harington (died 1582), English courtier and politician
John Harington, 1st Baron Harington of Exton (1539–1613), English politician
John Harington, 2nd Baron Harington of Exton (1592–1614), English courtier
John Harington (writer) (1560–1612), British writer, son of the treasurer
John Herbert Harington (1765–1828), British orientalist, colonial administrator and judge
Joy Harington (1914–1991), English television actress and writer
Kit Harington (born 1986), English actor
Lucy Harington, English Countess
Mabel Harington (died 1603), English courtier
Margaret Harington (died 1601), English courtier
Odile Harington (born 1961), alleged South African agent
Richard Harington (1800–1853), English cleric and Oxford college head
Sir Richard Harington, 11th Baronet (1835–1911), British barrister and judge
Sir Richard Harington, 12th Baronet (1861–1931), British barrister and judge
Robert Harington, 3rd Baron Harington (1356–1406), English peer.
Sarah Harington (1565–1629), English courtier
Theodosia Harington (died 1649), English courtier