| Ardderry Lough | |
| Pushpin Map: | Island of Ireland |
| Pushpin Map Alt: | Ardderry Lough location in Ireland |
| Pushpin Label Position: | none |
| Pushpin Map Caption: | Location in Ireland |
| Location: | County Galway |
| Inflow: | Lough Shindilla |
| Catchment: | 14.42km2 |
| Basin Countries: | Ireland |
| Length: | 3.7km (02.3miles) |
| Width: | 0.4km (00.2miles) |
| Area: | 0.81km2 |
| Depth: | 4m (13feet) |
| Max-Depth: | 12m (39feet) |
| Elevation: | 37m (121feet) |
Ardderry Lough is a freshwater lake in the west of Ireland. It is located in the Connemara area of County Galway.
Ardderry Lough measures about 4km (02miles) long and 0.5km (00.3miles) wide. It is located about 40km (30miles) northwest of Galway city on the N59 road near the village of Maam Cross.
Fish species in Ardderry Lough include perch, brown trout and the critically endangered European eel. Ardderry Lough is part of the Connemara Bog Complex Special Area of Conservation.