| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Natchaug River |  | Shetucket River | 41.7128000000 | -72.1917000000 | Map | ||||||
| Quinebaug River |  | Shetucket River | 24,000 | ||||||||
| Willimantic River |  | 582,747,328 | Shetucket River | 40,000 | 41.7128000000 | -72.1917000000 | Map | ||||
| Little River (Shetucket River tributary) |  | Shetucket River | 34,900 | 41.5947000000 | -72.0474000000 | Map | |||||
| Merrick Brook (Connecticut) |  | Shetucket River | 19,000 | 41.6606000000 | -72.1104000000 | Map |