Pirton is a small village and civil parish three miles north-west of Hitchin in Hertfordshire, England. The church, rebuilt in 1877, but with the remains of its 12th-century tower, is built within the bailey of a former castle. Pirton Grange, which was remodelled in the 18th century, is in the north of the parish, and is a particularly interesting, moated Elizabethan house with a timber framed gatehouse.