The Church of St Thomas of Canterbury and English Martyrs is the Roman Catholic church serving St Leonards-on-Sea, a town and seaside resort which is part of the Borough of Hastings in East Sussex, England. The present church, which combines a plain, unadorned Gothic Revival exterior with a lavishly decorated interior featuring extensive early 20th-century paintings by Nathaniel Westlake, is the third building used for Roman Catholic worship in the seaside resort. James Burton's new town of 1827, immediately west of Hastings, was home to a convent from 1848; public worship then transferred to a new church nearby in 1866. When this burnt down, prolific and "distinguished" architect Charles Alban Buckler designed a replacement. The church remains in use as the main place of worship in a parish which extends into nearby Hollington, and has been listed at Grade II by English Heritage for its architectural and historical importance.
