Nairn is a surname. Notable people with the surname include:
Allan Nairn (b. 1956), American investigative journalist
Gary Nairn (b. 1951), former Australian politician
Ian Nairn (1930–1983), British architectural critic
James Nairn (1859–1904), Scottish painter
Kristian Nairn (b. 1975), an actor and disc jockey
Nick Nairn (b. 1959), Scottish celebrity chef
Rob Nairn, South African Buddhist teacher and author
Tara Spencer-Nairn (b. 1978), Canadian actress
Thomas McIntyre Nairn (1830–1888), Ontario businessman and political figure
Tom Nairn (b. 1932), Scottish theorist of nationalism
Walter Nairn (1878–1958), Australian politician
