John Jairo Tréllez
|Full name||John Jairo Trellez Valencia|
|Date of birth||April 29, 1968|
|Place of birth||Turbo, Colombia|
|Height||6 ft 4 in (1.93 m)|
|* Senior club appearances and goals counted for the domestic league only.
John Jairo Tréllez Valencia (born 29 April 1968 in Turbo) is a retired Colombian footballer. A striker, he played most of his career with Atlético Nacional of Medellín. He has a son, also a striker, Santiago Tréllez.
Tréllez was born in Turbo, Antioquia, and started playing for Atlético Nacional in 1985. He scored his first goal as professional the same day the debuted against Cúcuta Deportivo. With Atlético Nacional Tréllez scored a total of 116 goals, 14 of which were against Independiente Medellín, Atlético Nacional's eternal rivals. In 1992, he became the top goal scorer in Colombia with 25 goals, becoming the first Colombian to become the league's goal scorer for Atlético Nacional. In 1994, Tréllez became the first Colombian to ever play for Boca Juniors of Argentina, where he scored two goals in 19 games, in all competitions.
- Colombian Championship winner with Atlético Nacional (1991)
- Copa Libertadores Championship winner with Atlético Nacional (1989)