Ian McMillan

Ian McMillan may refer to:


 * Ian MacMillan (author) (1941–2008), Hawaiian scholar and novelist
 * Ian McMillan (curler) (born 1991), Canadian curler
 * Ian McMillan (footballer) (1931–2024), Scottish footballer
 * Ian McMillan (poet) (born 1956), English poet, journalist, playwright, and broadcaster
 * Iain Macmillan (1938–2006), Scottish photographer