São Nicolau Regional Football Association

São Nicolau Regional Football Association (Portuguese: Associação Regional de Futebol de São Nicolau, abbreviation: ARFSN,) is a football (soccer) association covering the island of São Nicolau . It is headquartered in the island capital of Ribeira Brava The association are one of six in Cape Verde that covers only one municipality. It is the sublevel of the Capeverdean Football Federation.

The championship only has a single division where seven clubs participate, a club with the most points promotes into the National Championships.