| Site Name | Nepean River |
| Aboriginal Place Name | |
| Language Group | Bediagal/Dharug |
| Colony | NSW |
| Present State/Territory | NSW |
| Police District | Parramatta |
| Latitude | -33.561 |
| Longitude | 150.876 |
| Date | 27 Apr 1805 |
| Attack Time | day |
| Victims | Aboriginal People |
| Victims Killed | 8 |
| Victims Killed Notes | Killed: M 7 or 8, F; Probable: M F; Possible: M F; Wounded: M F |
| Attackers | Colonisers: Shepherd |
| Attackers Killed | 0 |
| Attackers Killed Notes | Killed: M F; Wounded: M F |
| Transport | Foot |
| Motive | Opportunity |
| Weapons Used | muskets |
| Narrative | Day time attack on Aboriginal camp on the mountain side of the Nepean River. |
| Sources | SG May 5- https://trove.nla.gov.au/newspaper/page/6111 and May 12 - https://trove.nla.gov.au/newspaper/page/6115, 1805 (Sources PDF) |
| Corroboration Rating | *** |
