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, 4 miles (6.4 km) 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.