Garnett is a surname. Notable people with the surname include:
A.Y.P. Garnett (1820–1888), American physician
Alvester Garnett (born 1970), American jazz drummer
Amaryllis Garnett (1943–1973), English actress
Amy Garnett (born 1976), English rugby union player
Angelica Garnett (1918–2012), English writer and painter
Arthur William Garnett (1829–1861), English military and civil engineer
Bill Garnett (born 1960), American basketball player
Bret Garnett (born 1967), American former professional tennis player
Carlos Garnett (born 1938), Panamanian-American jazz saxophonist
Christopher Garnett, British railway executive
Christopher Garnett (politician), British local councillor, mayor of Colchester
Constance Garnett (1861–1946), English translator
Dave Garnett (born 1970), American football player
David Garnett (1892–1981), British writer and publisher
David S. Garnett (born 1947), British science fiction writer
Edward Garnett (1868–1937), British writer, critic and editor
Edward Garnett (cricketer) (born 1965), English cricketer
Eve Garnett (1900–1991), English author and illustrator
Gale Garnett (born 1942), New Zealand-born Canadian folk singer
Harold Garnett (1879–1917), English-born cricketer who played for Lancashire and Argentina
Harry Garnett (1851–1928), British rugby union footballer
Henry Garnet or Garnett (1555–1606), English Jesuit priest, executed for complicity in the Gunpowder Plot
Sir Ian Garnett (born 1944), retired Royal Navy admiral
James Clerk Maxwell Garnett CBE (1880–1958), English educationist, barrister, and peace campaigner
James M. Garnett (1770–1843), U.S. Representative from Virginia
Jeremiah Garnett (1793–1870), English journalist
John Garnett (bishop) (1707/8–1782), English priest, bishop of Clogher, Ireland
John B. Garnett (born 1940), American mathematician
Joy Garnett (born 1965), American artist
Kevin Garnett (born 1976), American professional basketball player
Lucy Garnett (1849–1934), British folklorist and traveller
Marlon Garnett (born 1975), Belizean basketball player
Merrill Garnett (born 1931), American biochemist and cancer researcher
Michael Garnett (born 1982), Canadian ice hockey player
Muscoe Russell Hunter Garnett (1821–1864), U.S. Representative from Virginia
Nick Garnett (born 1964), English journalist and broadcaster
Nicole Stelle Garnett (born 1970), American law professor
Richard Garnett (philologist) (1789–1850), English philologist, author and librarian at the British Museum
Richard Garnett (writer) (1835–1906), English scholar, librarian, biographer and poet
Richard B. Garnett (1817–1863), Confederate general in American Civil War
Richard W. Garnett (born 1968), American legal scholar
Robert S. Garnett (congressman) (1789–1840), American politician and lawyer
Robert S. Garnett (1819–1861), Confederate officer in American Civil War
Ruby Nash Garnett (born 1939), American singer
Sarah Garnett, New Zealand international hockey umpire
Shaun Garnett (born 1969), English former professional footballer
Tay Garnett (1894–1977), American film director
Thomas Garnet or Garnett (1575–1608), English Jesuit priest and martyr, declared a saint in 1970
Thomas Garnett (disambiguation), multiple people
Tommy Garnett (1915–2006), Australian headmaster, ornithologist and horticulturist
Tony Garnett (born 1936), British film producer
William Garnett (civil servant) (1793–1873), British inspector-general of stamps and taxes who took a leading part in the introduction of income tax in Britain
William Garnett (politician) (1818–1873), British member of Parliament
William Garnett (photographer) (1916–2006), American photographer
Winfield Garnett (born 1976), former professional American footballer
Fictional characters:
Alf Garnett, character in 20th century BBC television sitcoms
