Michael or Mike Ahern may refer to:
- Michael Ahern (Irish politician) (born 1949), Irish Fianna Fáil politician and minister
- Mike Ahern (Australian politician) (1942–2023), Australian National Party politician and former Premier of Queensland
- Mick Ahern (1905–1946), Irish hurler
See also
- Mick Aherne, Gaelic football and hurling
- Mike Ahearn, former Kansas State football coach