|Location||New Mill, Cornwall|
|Founded||c. 100 BC|
|Abandoned||c. 300 AD|
Chysauster Ancient Village (Cornish: Chisylvester, meaning Sylvester's house) is a late Iron Age and Romano-British village of courtyard houses in Cornwall, United Kingdom, which is currently in the care of English Heritage. The village included eight to ten houses, each with its own internal courtyard. To the south east is the remains of a fogou, an underground structure of uncertain function.
Chysauster lies in southwest Cornwall in the Penwith District. It is located about 5 km north of Penzance at 175 m above sea level. The site is open from March/April to early November, and it is in the care of English Heritage, who charge an admission fee. The iron-age hill fort of Castle An Dinas is just over 1 km to the east. Another similar Iron Age settlement is Carn Euny about 10 km to the southwest and comparisons can be made with the contemporary Atlantic Castro culture.
Chysauster village is believed to have been inhabited from about 100 BC until the 3rd century AD; it was primarily agricultural and unfortified and probably occupied by members of the Dumnonii tribe. The village consists of the remains of around 10 courtyard houses, each around 30 metres in diameter. Eight of the houses form two distinct rows, and each house had an open central courtyard surrounded by a number of thatched rooms. The houses have a similar layout. The buildings are oriented on an east-west axis, with the entrance facing east. The walls survive to heights of up to 3 metres. A field system in the vicinity attests to the site's farming connections.
To the south of the settlement is an underground passage of a type known locally as fogou (from the permanently lenited form of mogow, Cornish for cave). Fogous can be found in other places in the UK and Ireland, and are known more generally as souterrains; their purpose is unclear. The fogou at Chysauster was originally recorded as running well over 16 metres in length but was blocked up in the late 20th century for safety reasons. It was recorded around 1847 by Henry Crozier who described it as a "voe or sepulchral chamber".
- "Cornish Language Partnership: Place names". cornwall.gov.uk. Retrieved 27 July 2019.
- Chysauster, prices and opening times, English Heritage, retrieved 11 April 2011
- Chysauster Settlement, Pastscape, retrieved 11 April 2011
- Chysauster Iron Age Village, Britain Express, retrieved 11 April 2011
- Chysauster Ancient Village, English Heritage, retrieved 11 April 2011
- Cavendish, Richard: Prehistoric England (London, 1983)
- Christie, Patricia Maeve Lascelles: Chysauster Ancient Village, Cornwall (London, English Heritage, 1987)
- Reynolds, P. K. B., Chysauster, Cornwall, Great Britain. Ministry of Public Building and Works (London H.M.S.O., 1960)
- Chysauster Ancient Village information at English Heritage
- Teachers' resources for Chysauster Village: English Heritage
- Hazard information for risk assessment for group leaders: English Heritage