Martin is a small village and civil parish in the North Kesteven district of Lincolnshire, England.

The village is on the western edge of the fen through which the River Witham runs.

Martin Moor is a drained area to the east of the village, where there is a golf course.

It is also often listed as Merton in older records, reflecting Old English origins of the name.

The Fynes family, a cadet branch of the Earls of Lincoln, were seated at White Hall, or Martin Grange, until the 18th century.