Alfonso Nelson Silva Pacheco (8 October 1944 – 10 January 2025) was an Uruguayan-born Colombian footballer who played as a forward.

Silva Pacheco played for Uruguayan clubs Danubio and Liverpool before moving to Argentina in 1966.

He eventually transferred from Argentina’s Rosario Central to Colombia’s Atletico Nacional in 1970.

In 1973 he won the Golden Boot for being the top scorer in the Colombian first division with 36 goals.

During this time he was naturalised and selected to play in three matches for the Colombia national team in 1975.