|OS grid reference|
|Sovereign state||United Kingdom|
|Post town||St Neots|
|Ambulance||East of England|
Eynesbury Hardwicke was historically part of Eynesbury parish. That parish was split in two in 1895; the village of Eynesbury was incorporated into the town of St Neots. Eynesbury Hardwicke parish was formed from the remaining 2,641 acres (10.7 km2) of countryside.
Caldecote Manor, Eynesbury Hardwicke House and the site of an abandoned village, Weald, are in the former parish. It did not contain a parish church or settlement—though by the time of its dissolution Eynesbury had expanded into the parish—but it did have a parish council. At the time of the 2001 census, the parish had a population of 1,124.
- Page, William (1932). Proby, Granville; Inskip Ladds, S. (eds.). A History of the County of Huntingdon: Volume 2. London. pp. 272–280.
- "Eynesbury Hardwicke". Towns and Parishes. Huntingdonshire District Council. Archived from the original on 30 September 2009. Retrieved 2 December 2009.
- "Ancient "lost" villages of Huntingdonshire". www.huntingdonshire.info. The County of Huntingdonshire UK]. Retrieved 2 December 2009.
- "Map of Eynesbury Hardwick:Ordnance Survey 1:25,000 mapping". www.streetmap.co.uk. Streetmap. Retrieved 2 December 2009.
- "Eynesbury Hardwicke Parish Council - Key Contacts". Parish council. Huntingdonshire District Council. Retrieved 2 December 2009.
- "Area: Eynesbury Hardwicke CP (Parish)". 2001 Census: Key Statistics > Parish Headcounts. Office for National Statistics. Retrieved 2 December 2009.
- "Parish Boundaries". Huntingdonshire District Council. Archived from the original on 19 July 2011. Retrieved 9 June 2017.