Portimonense Sporting Clube is a Portuguese sports club from Portimao, on the Algarve coast, founded on 14 August 1914. Its football team plays at the Estadio Municipal de Portimao, a roughly 5,000-capacity municipal ground redeveloped in 2011, and wears black-and-white stripes that are traditionally linked to the sea and sails of the town's fishing heritage.

The club has alternated between the Primeira Liga and the second tier for much of its modern history, enjoying a notable spell in the top flight from 2017 onwards and becoming known for recruiting Japanese and Brazilian players. Since 2013 the professional football operation has been run through a separate legal company, Portimonense Futebol SAD, in which the parent club holds the majority stake; the SAD is a corporate vehicle, not a distinct football team.