Westby is a hamlet in the civil parish of Bitchfield and Bassingthorpe, in the South Kesteven district of Lincolnshire, England. It is situated approximately 6 miles (9.7 km) south-east from the town of Grantham.
Westby is considered a shrunken medieval village[1] and at the time of Domesday Book of 1086 it consisted of eleven households.[2]