| Sandy Lake | |
| Pushpin Map: | Ontario |
| Location: | Ontario |
| Coords: | 44.544°N -78.406°W |
| Inflow: | spring-fed |
| Outflow: | creek flowing towards Buckhorn Lake |
| Basin Countries: | Canada |
| Length: | 5km (03miles) |
| Width: | 1km (01miles) |
| Elevation: | 246m (807feet) |
Sandy Lake is a lake in Trent Lakes township, Peterborough County, Ontario, Canada. It is about 5 km west of the community of Buckhorn, 1 km east of Lakehurst, and 25 km north of Peterborough. The lake is typically clear of turbidity and has a slight green color which results from the minerals present in the spring-fed water that feeds the lake. A small creek connects Sandy Lake to the Trent-Severn waterway at Buckhorn Lake. The majority of residences are seasonal.