Convincing Ground massacre
| Location | Portland, Victoria, Australia | 
|---|---|
| Coordinates | 38°16′42″S 141°39′34″E / 38.2784°S 141.6595°E | 
| Participants | European whalers Indigenous Kilcarer gundidj clan | 
| Casualties | |
| Whalers: Unknown | |
| Kilcarer gundidj: 60–200; all but 2 young men killed | |
The Convincing Ground Massacre was a massacre of the Kilcarer gundidj clan of the Indigenous Gunditjmara people, by British whalers based at Portland Bay in south-eastern Australia. The massacre was part of the wider Eumeralla Wars between the British colonisers and Gunditjmara.
The massacre has been recognised by academics and state officials as a significant event in the history of Victoria. Professor Lynette Russell, from Australian Indigenous Studies at Monash University, says that the "Convincing Ground is probably the first recorded massacre site for Victoria." The Convincing Ground site, on the shore of Portland Bay, close to the town of Portland, has been listed on the Victorian Heritage Register.