| Type: | town |
| Westby | |
| State: | nsw |
| Coordinates: | -35.4892°N 147.4172°W |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in New South Wales |
| Lga: | City of Wagga Wagga |
| Postcode: | 2650 |
| County: | Mitchell |
| Stategov: | Wagga Wagga |
| Dist1: | 9 |
| Location1: | Pulletop |
| Dist2: | 18 |
| Location2: | Little Billabong |
Westby is a rural community in the central east part of the Riverina. It is situated by Westby road, about 9 kilometres south east of Pulletop and 18 kilometres north of Little Billabong.
Westby was once the site of a railway station and terminus of the Westby railway line. Due to damage from a bushfire the last train to Westby was in January 1952. Services to Mangoplah, 20 kilometres to the north east, continued until the line was formally closed in July 1956.