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.

The Borough of Fylde is a local government district with borough status in Lancashire, England. It covers part of the Fylde plain, after which it is named. The council's headquarters are in St Annes. The borough also contains the towns of Kirkham, Lytham and Wesham and surrounding villages and rural areas.