a decayed market-town of England, in the county and 25 miles S.E. of Lincoln. The sea formerly extended up to the town, and there was a harbour near the present market-place. This has become silted up, and Swineshead is now about 2 miles distant from the nearest point of the sea. There are here a free school, several charities, and a large and handsome church. Formerly there was at Swineshead a Cistercian abbey, and it was in this house that King John took refuge, after losing his baggage in attempting to ford the Wash, shortly before his death. Pop. of the parish, 2044.