Threekingham (sometimes Threckingham or Tricengham) is a village in the North Kesteven district of Lincolnshire, England. The population of the civil parish at the 2011 census was 233. It is situated on the A52 Grantham to Boston road, 6 miles (10 km) south from Sleaford, and close to the A15 Threekingham Bar roundabout. Mareham Lane, the Roman Road aligned with King Street, crosses the A15 at Threekingham.
The name of the town means "home of Tric's people." Tric is a Brittonic personal name, though it is unclear whether Tric himself was a Briton or whether he was descended from Anglo-Saxon migrants but given a name borrowed from Celtic speakers who possibly lived nearby. Either way, Threekingham itself is a Germanic name, given by speakers of Old English.
A folk etymology that developed in the later Anglo-Saxon period derives the name from "home of the three kings," supposedly because three Danish kings were buried there; however, this is incorrect.
The Medieval Stow Fair was held nearby, less than 1 mile (1.6 km) to the south. It is possible that it was the site of the early medieval nunnery founded in the late 7th century by Saint Werburh, dedicated to Saint Æthelthryth, and probably destroyed by the Danes c. 870.
There are ancient earthworks and a mound called Threekingham Beacon to the west of the village. The post-medieval garden features overlie much older earthworks and tumuli. The remains of a moated manor house are in Hall Lane.
There is a Whalebone Arch marking the entrance to Laundon Hall.
- "Civil Parish population 2011". Neighbourhood Statistics. Office for National Statistics. Retrieved 1 June 2016.
- John Insley, "Britons and Anglo-Saxons," in Kulturelle Integration und Personennamen im Mittelalter (ed. Wolfgang Haubrichs and Christa Jochum-Godglück), 2018, p. 268
- Eleanor Parker, Dragon Lords: The History and Legends of Viking England, 2018, p. 190
- Historic England. "St Peters Church (348571)". Research records (formerly PastScape). Retrieved 21 October 2013.
- "Three Kings Inn, Threekingham", Geograph
- Historic England. "National Monument Record for St Æthelreda's nunnery (348635)". Research records (formerly PastScape). Retrieved 21 October 2013.
- Historic England. "National Monument Record for gardens of West Hall (348561)". Research records (formerly PastScape). Retrieved 21 October 2013.
- Historic England. "National Monument Record for moated manor (348580)". Research records (formerly PastScape). Retrieved 21 October 2013.