Grantham is a medium sized market town in Lincolnshire, England with about 35,000 inhabitants (40,000 including Great Gonerby). Situated on the River Witham, it has the East Coast Main Line (between the stops for Peterborough and Newark Northgate) and the A1 main road from London to Edinburgh running past it (the town was bypassed in 1962). The main shopping High Street, until recently, was part of the busy A52 (which runs to nearby Nottingham), and Wharf Road and London Road (next to Sainsburys) still are.

Grantham was a Parliamentary constituency in Lincolnshire, England. The constituency was created in 1468 and abolished in 1997. The area formerly covered by this constituency is now mostly in the Grantham and Stamford constituency.