Nunn is a surname. Notable people with the surname include:
Alf Nunn (1899–1946), English footballer
Alice Nunn (1927–1988), American actress
Andrew Nunn (born 1957), British Anglican priest
Anthony Nunn (1927–2025), British field hockey player
Aubrey Nunn (born 1966), English bass guitarist, songwriter and producer
Beau Nunn (born 1995), American football player
Ben Nunn (born 1989), English footballer
Bill Nunn (1953–2016), American actor
Bill Nunn (American football) (1924–2014), American journalist and football scout
Bill Nunn (Australian footballer) (1951–2022), Australian rules footballer
Bill Nunn (politician) (born 1932), Australian politician
Bobby Nunn (doo-wop musician) (1925–1986), American R&B singer
Bobby Nunn (R&B musician) (born 1952), American R&B producer, songwriter and vocalist
Brooke Nunn (born 1993), English footballer
Bunny Nunn (1927–2008), Australian soccer player
Cedric Nunn (born 1957), South African photographer and educator
Charlie Nunn (born 1971), British banker
Chris Nunn (born 1958), Australian athletics coach
Christine Nunn (born 1991), Australian squash player
Christopher Nunn (born 1983), British photographer
David Nunn (actor) (1962–2012), British actor
David A. Nunn (1833–1918), American politician from Tennessee
Ellie Nunn (born 1991), English actress, daughter of Trevor Nunn
Eric Nunn, Australian soccer player
Ernie Nunn (1904–1991), Australian rules footballer
Freddie Joe Nunn (born 1962), American football player
Frederick Nunn (c.1837–1870), English cricketer
Gary P. Nunn (born 1945), American country music singer-songwriter
George Nunn (born 2001), British footballer
Glynis Nunn (born 1960), Australian heptathlete
Horace Nunn (1891–1957), New Zealand rugby union and rugby league footballer
Howie Nunn (1935–2012), American baseball player
James Nunn (artist) (born 1973), British illustrator and print maker
James G. Nunn (bishop), American Methodist bishop
Jean Nunn (1916–1982), British civil servant
John Nunn (born 1955), English chess grandmaster and writer
John Nunn (cricketer) (1906–1987), English cricketer
John Nunn (race walker) (born 1978), American race walker
John Nunn (RAF officer) (1919–2013), British Royal Air Force officer, mathematician and politician
John Nunn (rower) (born 1942), American rower
John Nunn (sailor) (1803–1860), English sailor and author
John F. Nunn (1925–2022), British physician
Joseph Nunn (1905–1968), American engineer
Joseph Clyde Nunn (1908–1970), Canadian broadcaster and political figure from Nova Scotia
Joshua Nunn (1853–1908), Irish-born veterinarian and barrister in India and South Africa
Judy Nunn (born 1945), Australian actress and author
Kem Nunn (born 1948), American novelist
Kendrick Nunn (born 1995), American basketball player
L. L. Nunn (1853–1925), American entrepreneur and educator
Laurie Nunn (born 1986), English screenwriter and playwright
Les Nunn (born 1942), Australian water polo player
Louie Nunn (1924–2004), American politician from Kentucky
Malla Nunn (born 1963), Swaziland-born Australian writer, screenwriter and director
Marianne Nunn (1778–1847), British hymn writer
Matt Nunn (media executive) (born 1972), Australian media executive and basketball player and coach
Matt Nunn (politician) (born 1978), American politician
Merlin Nunn (1930–2020), Canadian judge and government official
Michael Nunn (born 1963), American boxer
Michael Nunn (dancer) (born 1967), British ballet dancer and choreographer
Michelle Nunn (born 1966), American philanthropic executive and politician
Mo Nunn (1938–2018), English engineer and motor racing team owner
Natalie Nunn (born 1984), American reality television personality
Nathan Nunn (born 1974), Canadian economist
Patrick Nunn (born 1969), English composer
Paul Nunn (1943–1995), English mountaineer, author and economic historian
Percy Nunn (1870–1944), British educationalist
Robert Nunn (American football) (born 1965), American football coach
Robert Nunn (songwriter) (1808–1853), English singer and songwriter from Tyneside
Robert Morris-Nunn (born 1949), Australian architect
Ronnie Nunn, American basketball referee
Sam Nunn (born 1938), American businessman and politician
Sam Nunn (rower) (born 1996), British rower
Susan C. Karant-Nunn, American historian
Steve Nunn (born 1952), American politician
Terrence Nunn (born 1986), American football player
Terri Nunn (born 1961), American singer and actress
Thomas Nunn (1846–1889), Australian cricketer
Thomas Hancock Nunn (1859–1937), English social reformer
Trevor Nunn (born 1940), English theatre and film director
Veronica Nunn (born 1957), American jazz singer
Wally Nunn (1920–1965), English footballer
William Nunn (1879–1971), British politician
Zach Nunn (born 1979), American politician and United States Air Force officer from Iowa