Guillermo Martínez is the name of:
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Guillermo Martínez (baseball)
Guillermo Enrique Martínez (born October 5, 1984) is the hitting coach of the Toronto Blue Jays of Major League Baseball (MLB). Prior to his coaching career, he spent several seasons as a shortstop in the Florida Marlins organization.
Profession ...
(born 1984), American baseball coach
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Guillermo Martínez Ayala (born 1995), Mexican football player
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Guillermo Martínez (javelin thrower) (born 1981), Cuban javelin thrower
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Guillermo Martínez (sport shooter) (born 1930), Colombian sport shooter
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Guillermo Martínez (volleyball) (born 1969), Argentine volleyball player
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Guillermo Martínez (writer) (born 1962), Argentine novelist and short story writer
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Guillermo Martínez Casañ (born 1955), Spanish politician
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Guillermo Ortiz Martínez
Guillermo Ortiz Martínez (born July 21, 1948, in Mexico City) is the son of Gen. Leopoldo Ortiz Sevilla and Graciela Martínez Ostos. He received a B.A. in economics from the National Autonomous University of Mexico and an M.Sc. and Ph.D. in ec ...
(born 1948), Mexican economist and politician
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Guillermo Zúñiga Martínez (1942–2015), Mexican politician
{{human name disambiguation, Martinez, Guillermo