| Tyers | |
| Pushpin Map: | Australia Victoria |
| Pushpin Map Caption: | Location of the Tyers River mouth in Victoria |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | State |
| Subdivision Name2: | Victoria |
| Subdivision Type3: | Region |
| Subdivision Name3: | South East Coastal Plain (IBRA), West Gippsland |
| Subdivision Type5: | Local government areas |
| Subdivision Name5: | Shire of Baw Baw, Latrobe City |
| Length: | 57km (35miles) |
| Source1: | Great Dividing Range |
| Source1 Location: | Talbot Peak |
| Source1 Coordinates: | -37.8894°N 146.3458°W |
| Source1 Elevation: | 1240m (4,070feet) |
| Source2: | Tyers River West Branch |
| Source2 Location: | below Mount Mueller |
| Source2 Elevation: | 1130m (3,710feet) |
| Source3: | Tyers River East Branch |
| Source3 Location: | Talbot Peak, Mount Mueller |
| Source3 Elevation: | 551m (1,808feet) |
| Source Confluence: | East and West branches of the Tyers River |
| Source Confluence Location: | Tyers Junction |
| Source Confluence Coordinates: | -37.9608°N 146.3339°W |
| Source Confluence Elevation: | 260m (850feet) |
| Mouth: | confluence with the Latrobe River |
| Mouth Location: | west of |
| Mouth Coordinates: | -38.1619°N 146.4369°W |
| Mouth Elevation: | 35m (115feet) |
| River System: | West Gippsland catchment |
| Tributaries Right: | Jacobs Creek (Victoria) |
| Custom Label: | National park |
| Custom Data: | Baw Baw National Park |
| Extra: | [1] [2] |
The Tyers River is a perennial river of the West Gippsland catchment, located in the West Gippsland region of the Australian state of Victoria.
The Tyers River rises below Talbot Peak, part of the Great Dividing Range, within the Baw Baw National Park at an elevation of and descends steeply. At Tyers Junction the river is joined by the confluence of the Tyers River West Branch that drains the eastern slopes of Mount Mueller from an elevation of and the Tyers River East Branch that drains the southern slopes of Talbot Peak from an elevation of . The river flows in a highly meandering course generally south, then south by east, through the Moondarra State Park, joined by one minor tributary, before reaching its confluence with the Latrobe River west of in the Latrobe City local government area. The river descends over its 57km (35miles) course.[2]
The Tyers River is impounded by the Moondarra Reservoir, at the junction of the Tyers River and Jacobs Creek. The reservoir is predominantly used to augment domestic water supplies.[3]
The Tyers River sub-catchment area is managed by the West Gippsland Catchment Management Authority.