| Johanna | |
| Name Etymology: | After the wreaked schooner Joanna |
| Map Size: | 250 |
| Pushpin Map: | Australia Victoria |
| Pushpin Map Size: | 250 |
| Pushpin Map Caption: | Location of the Johanna 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), The Otways |
| Subdivision Type5: | Local government area |
| Subdivision Name5: | Colac Otway Shire |
| Length: | 14km (09miles) |
| Source1: | Otway Ranges |
| Source1 Location: | below |
| Source1 Coordinates: | -38.6831°N 143.3836°W |
| Source1 Elevation: | 429m (1,407feet) |
| Mouth: | Great Australian Bight |
| Mouth Location: | Johanna Beach |
| Mouth Coordinates: | -38.7706°N 143.3953°W |
| Mouth Elevation: | 0m (00feet) |
| River System: | Corangamite catchment |
| Custom Label: | National park |
| Custom Data: | Great Otway National Park |
| Extra: | [1] [2] |
The Johanna River is a perennial river of the Corangamite catchment, located in the Otways region of the Australian state of Victoria.
The Johanna River rises in the Otway Ranges in southwest Victoria, below, and flows generally south through the Great Otway National Park before reaching its river mouth and emptying into the Great Australian Bight, west of Cape Otway at Johanna Beach, near . From its highest point, the river descends over its 14km (09miles) course.[2]
The river, Johanna Beach and the surrounding locality of Johanna are named after the schooner Joanna, wrecked nearby on 22 September 1843.[3] [4]