|Copa Libertadores||05/27 02:00||6|| Universidad Catolica v Atletico Nacional Medellin ||L||2-0|
|Copa Libertadores||05/20 22:00||5|| Argentinos Jrs v Atletico Nacional Medellin ||L||1-0|
|Copa Libertadores||05/13 03:00||4|| Atletico Nacional Medellin v Nacional De Football ||D||0-0|
|Copa Libertadores||05/06 22:00||3|| Atletico Nacional Medellin v Argentinos Jrs ||L||0-2|
|Colombia Primera A||05/02 20:30||3|| Atletico Nacional Medellin v La Equidad ||D||2-2|
|Copa Libertadores||04/28 22:00||2|| Nacional De Football v Atletico Nacional Medellin ||D||4-4|
|Colombia Primera A||04/26 01:00||3|| La Equidad v Atletico Nacional Medellin ||L||1-0|
|Copa Libertadores||04/23 00:00||1|| Atletico Nacional Medellin v Universidad Catolica ||W||2-0|
|Colombia Primera A||04/18 20:30||19|| Atletico Nacional Medellin v Patriotas FC ||W||7-1|
|Copa Libertadores||04/15 00:30||16||Atletico Nacional Medellin v Libertad Asuncion||W||4-1|
|Colombia Primera A||04/11 01:00||18|| Deportivo Cali v Atletico Nacional Medellin ||L||1-0|
|Copa Libertadores||04/08 00:30||16||Libertad Asuncion v Atletico Nacional Medellin||L||1-0|
|Failed to score||14||3||11|
Atlético Nacional S. A., best known as Atlético Nacional, is a Colombian professional football club based in Medellín. The club is one of only three clubs to have played in every first division tournament in the country's history, the other two teams being Millonarios and Santa Fe.
Atlético Nacional was founded on 7 March 1947 as Club Atlético Municipal de Medellín by Luis Alberto Villegas López, a former president of the football league of Antioquia. The current owner, Organización Ardila Lülle, officially acquired the team in 1996. According to CONMEBOL, Atlético Nacional is the club with the largest number of fans in Colombia.
Atlético Nacional plays its home games at the Atanasio Girardot stadium, which has a capacity of 45,943. It shares the stadium with its local rivals, Independiente Medellín. The teams face each other in a local derby known as El Clásico Paisa, which is considered one of the most important local derbies in the country. Atlético Nacional also has a rivalry with Millonarios, one of the most important rivalries in Colombian football. This rivalry arose from the 1989 Copa Libertadores.
Considered to be one of the strongest clubs from Colombia, it is one of the most consistent clubs in the country. Atlético Nacional has won 16 league titles, four Copa Colombia and two Superliga Colombiana, a total of 22 domestic titles, making it the most successful team in Colombia. It was also the first Colombian club to win the Copa Libertadores in 1989 and, after winning the title again in 2016, the most successful Colombian side in that tournament. It also has the most international titles of any Colombian club, having also won the Copa Merconorte twice, the Copa Interamericana twice, and the Recopa Sudamericana once, for a total of seven international trophies.
In 2016, Atlético Nacional was ranked by IFFHS as the best football club in the world, becoming the first South American club, and the first outside Europe, to receive the honor. It is also ranked as the best Colombian club in the 21st century. Nacional is also credited as the best Colombian team in CONMEBOL club tournaments and ranks 3rd in Copa Libertadores' official club ranking.