| Country: | England |
| Official Name: | Westby |
| Coordinates: | 52.8435°N -0.5569°W |
| Civil Parish: | Bitchfield and Bassingthorpe |
| Shire District: | South Kesteven |
| Shire County: | Lincolnshire |
| Region: | East Midlands |
| Constituency Westminster: | Grantham and Stamford (UK Parliament constituency) |
| Post Town: | Grantham |
| Postcode District: | NG33 |
| Postcode Area: | NG |
| Os Grid Reference: | SK972283 |
| London Distance Mi: | 95 |
| London Direction: | SSE |
Westby is a hamlet in the civil parish of Bitchfield and Bassingthorpe, in the South Kesteven district of Lincolnshire, England. It is situated approximately 6miles south-east from the town of Grantham.Westby is considered a shrunken medieval village and at the time of Domesday Book of 1086 it consisted of eleven households.[1]