Juan Ramón "Mon" Martínez (20 April 1948 – 4 August 2024) was a Salvadoran footballer who played as a midfielder.

Martínez played in Guatemala, where he won a title with Municipal in 1965–66.

[2] Martínez represented his country at the 1968 Summer Olympics, Salvador’s only participation to the Olympic Football Tournament, playing three games and scoring Salvador’s first ever goal (out of 2) in the Olympics[3] and the 1970 FIFA World Cup in Mexico.

[4] He scored 14 goals for the El Salvador national team from 1967 to 1976,[5] 7 of those in World Cup qualification.

This biographical article related to Salvadoran association football is a stub.