| Type: | suburb |
| Nelson | |
| City: | Sydney |
| State: | nsw |
| Lga: | The Hills Shire |
| Postcode: | 2765 |
| Coordinates: | -33.6458°N 150.9219°W |
| Alternative Location Map: | Australia Sydney |
| Local Map: | yes |
| Zoom: | 12 |
| Pop: | 460 |
| Elevation: | 51 |
| Stategov: | Castle Hill |
| Fedgov: | Mitchell |
| Near-S: | Rouse Hill |
| Near-Se: | Rouse Hill |
| Dist1: | 42 |
| Dir1: | NW |
| Location1: | Sydney CBD |
Nelson is a suburb of Sydney, in the state of New South Wales, Australia 42 kilometres north-west of the Sydney central business district in the local government area of The Hills Shire. It is part of the Hills District.