Guillermo Ortiz Camargo (25 June 1939 – 17 December 2009) was a Mexican football forward who played for Mexico in the 1962 FIFA World Cup.
Guillermo Ortiz started as a child on the position of the full-back, played in youth as the midfielder and later acted as a half-bladed striker.
He joined his club at the age of 13, because his father, Marcial "El Ranchero" Ortiz, who also played for Necaxa, was placed in its junior department.
His debut in the Mexican Primera División gave Chato Ortiz 1957 in a game against Atlas.
Ortiz was also called in the Mexican World Cup squad in 1962, but was not used due to injuries.