Normanby by Spital is a village and civil parish in the West Lindsey district of Lincolnshire, England. According to the 2001 census it had a population of 318, increasing to 412 at the 2011 census. It is approximately 10 miles (16 km) north from Lincoln, and just off the A15. The village is part of the Owmby Group of parishes.

The A15 is a major road in England. It runs north from Peterborough via Market Deeping, Bourne, Sleaford and Lincoln along a variety of ancient, Roman, and Turnpike alignments before it is interrupted at its junction with the M180 near Scawby. The road restarts 10 miles (16 km) east, and then continues north past Barton-upon-Humber, crossing the Humber on the Humber Bridge before terminating at Hessle near Kingston upon Hull.