| East Aspetuck River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | States |
| Subdivision Name2: | Connecticut |
| Subdivision Type4: | Towns |
| Subdivision Name4: | Washington, New Milford |
| Length: | 9.9miles |
| Source1: | Lake Waramaug |
| Source1 Location: | Washington, Connecticut |
| Source1 Coordinates: | (41.6829°N -73.3537°W) |
| Source1 Elevation: | 692feet |
| Mouth: | West Branch Aspetuck River |
| Mouth Location: | New Milford, Connecticut |
| Mouth Coordinates: | (41.5879°N -73.4235°W) |
| Mouth Elevation: | 203feet |
| River System: | Housatonic |
| Basin Size: | 16169.24acres |
| Custom Label: | Gradient |
| Custom Data: | 50.80 fpm |
The East Aspetuck River is a 9.9adj=midNaNadj=mid[1] river in Litchfield County, Connecticut, in the United States. It flows in a southwesterly direction from its source at Lake Waramaug, in the town of Washington, through the villages of New Preston and Northville, before joining the West Aspetuck River in New Milford, a half a mile before emptying into the Housatonic River. It is a designated "wild trout management area," with special regulations in effect for its entire length.