Guillermo Ortiz

Guillermo Ortiz may refer to:


 * Guillermo Ortiz (Mexican footballer) (1939–2009), Mexican football forward
 * Guillermo Ortiz Mondragón (1947-2021), Mexican Roman Catholic prelate
 * Guillermo Ortiz Martínez (born 1948), former Governor of the Bank of Mexico
 * Guillermo Ortiz Mayagoitia (born 1941), President of the Supreme Court
 * Guillermo Ortiz (Argentine footballer) (born 1992), Argentine football centre-back