伊斯特本（英语：Eastbourne），英国英格兰东南区域东萨塞克斯郡最大的镇、自治市镇，2007年区内人口大约94,816人。当地自从石器时代已经人类活动，但直到19世纪仍然是个由四个小村落合并成的小市镇。籍着铁路的发展，伊斯特本成了一个原始维多利亚式的渡假区。自此，每年都受到全英国游客人潮的影响。

伊斯特本地处南唐恩斯（South Downs）的东端，依着比奇角（Beachy Head）的峭壁。峭壁背后的地方成了全英国阳光最充沛的地方。

虽然伊斯特本有一些工业贸易，但它仍然以海边酒店及周边带来的旅游收益为主。当地有四间剧院、大量公园、博物馆等等。长达六公里的海滩成了旅游重点。

Eastbourne ( pronunciation ) is a large town, seaside resort, and borough in the non-metropolitan county of East Sussex on the south coast of England, 19 miles (31 km) east of Brighton. Eastbourne is immediately to the east of Beachy Head, the highest chalk sea cliff in Great Britain. With a seafront consisting largely of Victorian hotels, a pier, and a Napoleonic era fort and military museum, Eastbourne was developed by the Duke of Devonshire from 1859 from four separate hamlets. It has a growing population, a broad economic base, and is home to companies in a wide range of industries.