Cormac mac Cuilennáin was an Irish bishop and the king of Munster from 902 until his death at the Battle of Bellaghmoon. He was killed in Leinster.
- Occupation
- king, presbyter
- Position held
- King of Munster, bishop
- Citizenship
- Ireland
- Born
- 801, 836
- Died
- September 13, 908