Club Atlético Nacional S.A., also known as just Atlético Nacional, is a professional Colombian football team based in Medellín. They are one of the most successful and popular football teams in Colombia.
They play their home games at the Atanasio Girardot Stadium. They share the stadium with their local rivals, Independiente Medellin. The club is one of only three teams to play in every first division tournament in Colombia. The other two teams are Millonarios and Santa Fe.