| Isis | |
| Map Size: | 280 |
| Pushpin Map: | Australia Tasmania |
| Pushpin Map Size: | 280 |
| Pushpin Map Caption: | Location of the Isis River mouth in Tasmania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | State |
| Subdivision Name2: | Tasmania |
| Subdivision Type3: | Region |
| Subdivision Name3: | Midlands (Tasmania) |
| Length: | 38km (24miles) |
| Source1: | Mount Franklin |
| Source1 Location: | Great Western Tiers |
| Source1 Elevation: | 833m (2,733feet) |
| Mouth: | Macquarie River |
| Mouth Location: | north west of |
| Mouth Coordinates: | -41.8178°N 147.2497°W |
| Mouth Elevation: | 171m (561feet) |
| River System: | South Esk River system |
| Extra: | [1] |
The Isis River is a minor perennial river located in the Somerset Land District, in the northern region of Tasmania, Australia.[2]
The river rises below It starts below Mount Franklin in the Great Western Tiers west of Ross and flows generally north by east before reaching its confluence with the Macquarie River northwest of . The river flows through the settlements of and . The river descends over its 38km (24miles) course.[1]