Aitkin is a surname. Notable people with the surname include:
Alexander Aitkin (1771–1799), mathematician and first surveyor general of Upper Canada Don Aitkin (1937–2022), Australian political scientist John Aitkin (disambiguation) Murray Aitkin, Australian statistician Yvonne Aitken (1911–2004), Australian agricultural scientist
See also Aitken (surname) Atkins (surname)