Charwelton is a village and civil parish about 5 miles (8 km) south of Daventry in Northamptonshire.
The Church of England parish church of the Holy Trinity is at Church Charwelton about 1 mile (1.6 km) south-east of the village. Its earliest features include the west windows of the south aisle, which are a stepped trio of lancet windows from about 1300. Holy Trinity has both a south and a north aisle, and the latter has a Perpendicular Gothic three-bay arcade. The west tower is also Decorated Gothic. The south porch is Perpendicular Gothic and the font may be 15th century. The chancel was largely rebuilt in 1901–04. Holy Trinity is a Grade I listed building.
Charwelton's earliest surviving crossing over the river is a narrow packhorse bridge. It has two arches and one cutwater and may be 15th century. It is a Grade II listed building.
West of the manor house are the remains of a set of Medieval fish ponds that were fed by the river. Just east of the trackbed of the former railway line is the mill mound where a windmill would have stood.
The Great Central Main Line from the north of England to London Marylebone was built through the parish in the 1890s and opened in March 1899. The line crossed the river between Charwelton and Church Charwelton. Charwelton railway station was built just east of the packhorse bridge. Just south of the village were Charwelton Watertroughs. An industrial railway that brought ironstone from quarries at Hellidon to the main line at Charwelton station. British Railways closed Charwelton station in March 1963 and the line in September 1966.