Clube Desportivo Portosantense, simply Portosantense, is a Portuguese football based in Porto Santo, Madeira. Founded in 1948, it currently plays in the Portuguese Third Division, holding home matches at the José Lino Pestana (a club president), with a 2,500-seat capacity.
In 2004, Portosantense first reached the third division, remaining there four years. In the 2007–08 season, the club finished 10th and missed out on the 6th place required to guarantee promotion through the play-offs; it was later relegated back to the fourth level due to irregularities.