Guillermo Franco was born on November 3, 1976.
Guillermo Moscoso was born on November 14, 1983.
Guillermo Vilas was born on August 17, 1952.
Guillermo Kahlo was born on October 26, 1871.
Guillermo Coria was born on January 13, 1982.
Guillermo Stábile was born on January 17, 1905.
Guillermo Cañas was born on November 25, 1977.
Guillermo Diaz was born on March 4, 1985.
Guillermo Endara was born on May 12, 1936.
Guillermo Ochoa was born on July 13, 1985.
Guillermo del Toro was born on October 9, 1964.
'Habacuc' Guillermo Vargas was born on September 18, 1975.
Guillermo Barros Schelotto was born on May 4, 1973.