St Annes on the Sea is a town in the Borough of Fylde, Lancashire, England. It contains 23 listed buildings that are recorded in the National Heritage List for England. Of these, one is listed at Grade II*, the middle of the three grades, and the others are at Grade II, the lowest grade. Until the 1870s the only buildings in the area now occupied by the town were scattered cottages. In 1873 the architects Maxwell and Tuke were appointed to draw up a plan for the development of the town. This has since grown to become a seaside resort and commuter town. The listed buildings include churches and associated structures, public buildings, a hotel and its boundary wall, memorials, a bank, and a former school. The structures relating to the town's function as a resort are a pier, a pavilion and shelters, fountains, and a bandstand.

Lytham St Annes is a seaside town in the Borough of Fylde in Lancashire, England. It is on the Fylde coast, directly south of Blackpool on the Ribble Estuary. The population of the built-up area at the 2021 census was 42,695. The town is made up of the four areas of Lytham, Ansdell, Fairhaven and St Annes-on-the-Sea.