Juan David Valencia (born January 15, 1986) is a Colombian footballer that currently plays for Atlético Nacional. He can play as midfielder or defender.
Valencia started his footballing career in the youth ranks of Independiente Medellín. After making his debut in the Colombian First Division with the Medellín club, Valencia was loaned out to Venezuelan side Caracas FC. Valencia quickly established himself as a fixture on the left side of the Caracas midfield. He has also played left back.
He scored his first league goal with Caracas in a 2-1 victory over rival Unión Atlético Maracaibo. He has also started all the clubs matches in the 2008 Copa Libertadores, scoring in a 1-1 draw versus Brazilian side Cruzeiro Esporte Clube on March 18, 2008.
On 2012, Atlético Nacional bought the half of his rights after being champion of Liga Postobon with Atlético Junior.