Westbourne is a village, civil parish and electoral ward in the Chichester District of West Sussex, England. It is located 0.5 miles (0.80 km) north east of Emsworth. The parish includes the hamlets of Woodmancote and Aldsworth, and once included the settlements of Southbourne and Prinsted to the south.

Emsworth is a town in the Borough of Havant in the county of Hampshire, on the south coast of England near the border with West Sussex. It lies at the north end of an arm of Chichester Harbour, a large and shallow inlet from the English Channel, and is equidistant between Portsmouth and Chichester.