| Ballynakill Lough | |
| Pushpin Map: | Island of Ireland |
| Pushpin Map Alt: | Ballynakill Lough location in Ireland |
| Pushpin Label Position: | none |
| Pushpin Map Caption: | Location in Ireland |
| Basin Countries: | Ireland |
| Type: | Lake |
| Coords: | 53.5553°N -10.0517°W |
| Location: | County Galway |
Ballynakill Lough is a lake in Connemara, County Galway, Ireland.[1] [2] The lake is fed by a short stream connected to the nearby Atlantic Ocean. Tooreen Bog is located on the lakes south coast. The village of Cleggan is located to the west.[3] [4]