Clube Desportivo Nacional, commonly known as Nacional and sometimes Nacional da Madeira, is a Portuguese football club based in Funchal, on the island of Madeira.

Funchal is the capital, largest city and the municipal seat of Portugal's Autonomous Region of Madeira, bordered by the Atlantic Ocean. The city has a population of 105,795, making it the sixth largest city in Portugal. Because of its high cultural and historical value, Funchal is one of Portugal's main tourist attractions; it is also popular as a destination for New Year's Eve, and it is the leading Portuguese port on cruise liner dockings.