Guillermo Martínez
Guillermo Martínez is the name of the following people:
- Guillermo Martínez (writer) (* 1962), Argentine writer and mathematician
- Guillermo Martínez (volleyball player) (born 1969), Argentinian volleyball player
- Guillermo Martínez (athlete) (* 1981), Cuban athlete
- Guillermo Martínez (film director) (* 1989), Argentine film director
- Guillermo Martínez Ayala (* 1995), Mexican soccer player
- Guillermo Bedoya Martínez ( Eddy Martínez ; 1933–2011), Peruvian singer
- Guillermo Ortiz Martínez (* 1948), Mexican economist