Barnwell (formerly Barnwell All Saints and Barnwell St Andrew) is a village and civil parish in the North Northamptonshire district, in Northamptonshire, England, south of the town of Oundle, north of London (via the A1 road) and south-west of Peterborough. The River Nene runs north of the village, separating it from Oundle.
The villages name origin is uncertain. 'Warrior's spring/stream', 'Beorna's spring/stream' or 'burial-place spring/stream'.
Demographics
The 2001 census showed there were 362 people living in the village, 171 male, 191 female, with average age 40.54 years in 150 households. The population shown at the 2011 census was 369.
Governance
The village has a parish council and. since 2021, is part of North Northamptonshire. It was formerly governed by East Northamptonshire District Council, where it was in Barnwell Ward, and Northamptonshire County Council where it was in Thrapston division.
Barnwell is part of the parliamentary constituency of Corby.
Facilities and other buildings
thumb|All Saints' chancel
The village has two Church of England churches reflecting the fact that the village is formed from two separate ones. St Andrew's
South-east of the church are Latham's Almshouses (founded 1601, rebuilt 1874). Children now attend the primary school at Oundle.
Local attractions
Barnwell Country Park
Like many similar areas on the River Nene, Barnwell Country Park was developed from abandoned sand and gravel workings on the flood plain of the river just south of Oundle in the part of the area known as Rockingham Forest. The park is bounded on the north-west and south-west by a flood channel loop of the River Nene, known as 'the Backwater', and on the east by the A605 Barnwell Road. It consists of a series of willow-fringed lakes, short mown grass, coarser vegetation, conservation grassland and small wooded areas. The lakes, picnic meadows, river and the resident water birds make the park very attractive to visitors and in particular young families. The irregular shapes of the lakes provide different views around each corner and give a sense of "progressive revelation" to visitors.
The park is flat and very accessible with a network of stone paths suitable for prams and wheelchairs. There is a Ranger Service, on hand to answer visitors' queries and to provide general assistance. In 2007 to 2008, 191,874 visits were made to the park (electronic car counter, assuming 3.5 people per car). From the 2007 visitor surveys, picnicking, dog walking, leisurely strolls, feeding the water birds, fishing and watching the wildlife are the main reason for visits. There is a hard-standing car park for 50 cars and the recreational meadows are used for overflow parking.
The park, totalling , was owned by Northamptonshire County Council. The Ordnance Survey grid reference is TL 036874.
Barnwell Castle
Barnwell Castle is in the northern part of the village and believed to have been built around 1266. It is described as 'the first example in Britain of the most monumental type of castle architecture. The site is private property but can be seen from the road.
Barnwell Manor
Barnwell Manor is the historic former home of the Duke and Duchess of Gloucester and is part of the Barnwell Castle Estate.