Ian Smith (1919–2007) was the Prime Minister of Rhodesia from 1964 to 1979.

Ian or Iain Smith may also refer to:

Entertainment Iain Crichton Smith (1928–1998), Scottish poet and critic Ian Smith (actor) (born 1938), Australian actor, producer and screenwriter Iain Smith (producer) (born 1949), Scottish film producer Ian Michael Smith (born 1987), American actor, technologist, and disability activist Ian Smith (comedian) (born 1988), English comedian Ian Smith (photographer) (–), Scottish photographer Iain Campbell Smith, Australian diplomat, singer/songwriter, and comedian

Politics Ian Smith (Australian politician) (born 1939), Liberal Party Iain Duncan Smith (born 1954), British Conservative Party politician Iain Smith (Scottish politician) (born 1960), Liberal Democrat

Sports Cricket Ian Smith (South African cricketer) (1925–2015) Ian Smith (New Zealand cricketer) (born 1957), player and commentator Ian Smith (English cricketer) (born 1967), played for Glamorgan and Durham

Football Ian Smith (footballer, born 1952) (Ian Lennox Taylor Smith), Scottish football forward Ian Smith (footballer, born 1957) (Ian Ralph Smith), English football fullback born in Rotherham, South Yorkshire Paul Smith (footballer, born 22 January 1976) (Ian Paul Smith), English footballer born in Easington, County Durham Ian Smith (footballer, born 1998) (Ian Rey Smith Quirós), Costa Rican footballer

Rugby Ian Smith (rugby union, born 1903) (1903–1972) Ian Smith (rugby union, born 1941) (1941–2017) Ian Smith (rugby union, born 1944), Scottish international rugby union player Ian Smith (rugby union, born 1957), nicknamed "Dosser", English rugby player/coach Ian Smith (rugby league) (born 1965), Super League referee Ian Smith (rugby union, born 1965), rugby union coach

Others Ian William Murison Smith (1937–2016), professor of chemistry, University of Birmingham Ian Smith (impresario) (1939–2019), journalist, businessman, and impresario Iain R. Smith (1939–2021), reader in history at the University of Warwick Ian K. Smith (born 1969), African-American physician Ian Smith (lobbyist), Australian businessman, corporate advisor and journalist Ian Smith (archaeologist) (1954–2020), New Zealand archaeologist Ian T. Smith, professor of employment law at the University of East Anglia Ian Smith (civil engineer), professor emeritus at the Technical University of Munich Ian (rapper), American rapper