Bourne is a market town and civil parish in the South Kesteven district of Lincolnshire, England. It lies on the eastern slopes of the limestone Kesteven Uplands and the western edge of the Fens, 11 miles (18 km) north-east of Stamford, 12 miles (19 km) west of Spalding and 17 miles (27 km) north of Peterborough.