| Bass | |
| Name Native: | |
| Name Etymology: | In honour of George Bass |
| Pushpin Map: | Australia Victoria |
| Pushpin Map Caption: | Mouth of the Bass River 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 area |
| Subdivision Name5: | Bass Coast Shire |
| Length: | 59km (37miles) |
| Discharge1 Location: | mouth |
| Source1: | Strzelecki Ranges |
| Source1 Location: | below Woodleigh |
| Source1 Coordinates: | -38.3742°N 145.6581°W |
| Source1 Elevation: | 60m (200feet) |
| Mouth: | Western Port |
| Mouth Location: | west of |
| Mouth Coordinates: | -38.4961°N 145.4317°W |
| Mouth Elevation: | 0m (00feet) |
| River System: | Western Port catchment |
| Tributaries Left: | Wattle Creek |
| Extra: | [3] |
The Bass River, a perennial river of the Western Port catchment, is located in the West Gippsland region of the Australian state of Victoria.
The Bass River rises below the locale of Woodleigh, west of the South Gippsland Highway, with its headwaters drawn from the Strzelecki Ranges, north of the town of . The river flows generally south by west, joined by one minor tributary, before reaching its river mouth and emptying into the Western Port, west of the town of within the Bass Coast Shire. The river descends over its combined course.[3]
The river is traversed by the Bass Highway near the town of Bass.[3]
In the Aboriginal Boonwurrung language the river is given two names, Weandon yallock, with yallock meaning "river" or creek",[1] and Tullungurn, with no defined meeting.[2]
The river is now named in honour of George Bass, who came to the river and surrounding area in January 1798 on his "whaleboat" expedition of the southeast coast of Australia.[2]