Aldingbourne is a village, Anglican parish and civil parish in the Arun District of West Sussex, England. Its centre is 4 miles north of Bognor Regis and 4 miles east of Chichester with the A29 and A27 main roads running through it. The civil parish is named for the small village of Aldingbourne, but most of the population is in Westergate, and the smaller settlements of Norton, Nyton, Woodgate, Lidsey and part of Shripney.