Säkylä is a municipality of Finland.

Säkylä is located in the province of Western Finland and is part of the Satakunta region. The municipality has a population of 4,503 (30 June 2015) and the municipality covers an area of 268.44 square kilometres (103.65 sq mi) of which 107.89 square kilometres (41.66 sq mi) is inland water (2011-01-01). The population density is 28 inhabitants per square kilometre (73/sq mi) (30 June 2015). Municipality of Köyliö was merged to Säkylä on 1 January 2016.