Lincolnshire (abbreviated Lincs) is a historic county in the east of England. It borders Norfolk to the south east, Cambridgeshire (Cambs) to the south, Rutland to the south west, Leicestershire (Leics) and Nottinghamshire (Notts) to the west, South Yorkshire to the northwest, and the East Riding of Yorkshire to the north. Its 20 yard border with Northamptonshire (Northants) is England's shortest county boundary. The county town is Lincoln.

Lincs is the second largest of the English counties and one that is predominantly agricultural in land use.

Lincolnshire consists of a number of geographical sub-regions including:

the Lincolnshire Fens (south-east Lincolnshire),

the Carrs (similar to the Fens but located in north Lincolnshire),

the rolling hills of the Lincolnshire Wolds,

the industrial areas of Humber Estuary and North Sea coast (The Wash) around Scu nthorpe and Grimsby,

 and in the south-west of the county,

the Lincolnshire Vales, comprising the limestone hills in the district of South Kesteven.

Lincolnshire is also famous for 'the Imp' and the WW11 aircraft 'The Lincoln Bomber'.