Community Assembly of Southbourne is situated in a suburb of Bournemouth in the area of Bournemouth

The Community Assembly of Southbourne is situated in a suburb of Bournemouth in the area of Bournemouth, Christchurch and Poole, in the county of Dorset in the British Isles. It is situated between Boscombe and Christchurch. The area was previously known as Stourfield, and Southbourne refers to the area near to the coast. Areas further inland are known as West Southbourne, Tuckton and Wick. Southbourne was part of Hampshire until 1974.

Southbourne was the creation of Thomas Compton, a young physician who set up a general practice in Bournemouth in 1866 and could see the area's potential as a health resort. Prior to his arrival, the clifftop land had been part and parcel of Tuckton Farm, Southbourne being founded precisely where the piggeries had stood. This area of clifftop land was purchased in 1871 and was later developed by the Southbourne-on-Sea Freehold Land Company, founded in 1882.

Southbourne once had a short-lived pier. It was built in 1888 and was 300 feet long. There were regular boat-trips between the pier at Southbourne and the pier at Bournemouth. The pier, promenade and nearby sea wall were heavily damaged by storms in December 1900 and January 1901. A buyer for the pier was unable to be found and it was eventually demolished in 1909 due to public safety concerns.