| Site Name | Slaughterhouse Creek, Gwydir River |
| Aboriginal Place Name | |
| Language Group | Gamilaraay |
| Colony | NSW |
| Present State/Territory | NSW |
| Police District | Singleton |
| Latitude | -29.735 |
| Longitude | 150.317 |
| Date | 1 May 1838 |
| Attack Time | dawn |
| Victims | Aboriginal People |
| Victims Killed | 300 |
| Victims Killed Notes | Killed: M F; Probable: M 300 (?), F; Possible: M F; Wounded: M F |
| Attackers | Colonisers: Stockman/Drover |
| Attackers Killed | 0 |
| Attackers Killed Notes | Killed: M F; Wounded: M F |
| Transport | Horse |
| Motive | Opportunity |
| Weapons Used | swords, cutlasses,muskets, pistols |
| Narrative | Fifteen heavily armed stockmen positioned themselves on the slopes of the ravine for a dawn attack on an Aboriginal camp below on the creek bed. According to Roger Milliss, about 200 Gamilaraay were slaughtered. The massacre is embedded in the memories of the Gamilaraay in the region. |
| Sources | Milliss 1992: 200-3 (Sources PDF) |
| Corroboration Rating | * |