The São Nicolau Island League is a regional championship played in São Nicolau Island, Cape Verde. The winner of the championship plays in Cape Verdean football Championships of each season. The league was formed in the 1980s. The competition is organized by the São Nicolau Regional Football Association (Associação Regional de Futebol de São Nicolau, ARFSN).[1]
Three clubs has ever won titles, the most is SC Atlético with fourteen, FC Ultramarina with twelve and Desportivo Ribeira Brava with three. Ultramarina won a championship every two years between 2007 and 2017 while Atlético Ribeira Brava won every two years between 2012 and 2016. Its 2018 champion is the next first timer in 27 years and will be FC Belo Horizonte of Juncalinho.
The league has eight clubs.