Sibsey is a village, civil parish and electoral ward in the East Lindsey district of Lincolnshire, England. It is situated at the junction of the A16 and B1184 roads, north from Boston. Sibsey Northlands is to the north of the village. The Prime Meridian passes just to the west of Sibsey, crossing the Stone Bridge Drain canal. At the 2001 census, Sibsey had a population of 1,996, reducing to 1,979 at the 2011 Census.
Set in the fens of Lincolnshire, Sibsey is a focus of the farming community. The village is surrounded by farmland. The village won an award for best-kept village in 1989. The village has a village hall, a post office with shop, and a public house, the White Hart, on Main Road. Although the postal address for residences includes nearby Boston, it is not in that borough.