Aldingbourne is a village and civil parish in the Arun district of West Sussex, England, with a population of 3,612 (2001 census). It is about five miles (8 km) north of Bognor Regis and six miles (10 km) east of Chichester. The parish, named for the small village of Aldingbourne, also contains the much larger settlement of Westergate, as well as smaller settlements at Norton, Nyton, Woodgate and Lidsey.