Eastbourne is a constituency for the House of Commons of the UK Parliament. It was created as one of nine in Sussex in 1885, since when it has reduced in geographic size reflecting the growth of its main settlement, Eastbourne.

Eastbourne is a town and seaside resort in East Sussex, on the south coast of England, 19 miles (31 km) east of Brighton and 54 miles (87 km) south of London. It is also a local government district with borough status. Eastbourne is immediately east of Beachy Head, the highest chalk sea cliff in Great Britain and part of the larger Eastbourne Downland Estate.