Domnall mac Áeda
| Domnall mac Áeda | |
|---|---|
| King of Ailech | |
| Reign | 887–911 |
| Predecessor | Flaithbertach mac Murchado |
| Successor | Niall Glúndub |
| Died | 21 March 915 |
| Issue | Flann Flaithbertach Fergal Conchobar |
| House | Cenél nEógain |
| Father | Áed Findliath |
| Mother | Gormlaith Rapach of Ulaid |
Domnall mac Áeda (died 915), also known as Domnall Dabaill, was a King of Ailech. He was a son of Áed Findliath mac Niall, High King of Ireland. Domnall was a half-brother of Niall Glúndub mac Áeda, a man with whom he shared the kingship of Ailech. From Domnall would descend the Mac Lochlainn dynasty.