Guillermo () is the Spanish form of the male given name

William William is a male given name of Germanic origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conquest of Engl ...

. The name is also commonly shortened to 'Guille' or, in Latin America, to nickname 'Memo'.

People

Guillermo Amor Guillermo Amor Martínez (; born 4 December 1967) is a Spanish retired footballer who played as a versatile midfielder. After spending most of his professional career with Barcelona, winning several accolades in a ten-year tenure, he ended it i ...

(born 1967), Spanish football manager and former player *

Guillermo Arévalo Guillermo Arévalo Valera (born 1952) is a Shipibo ''vegetalista'' and businessperson from the Maynas Province of Peru. His Shipibo name is Kestenbetsa. In 1982, Arévalo co-founded Aplicación de Medicina Tradicional (AMETRA), an organization ...

(born 1952), a Shipibo shaman and ''curandero'' (healer) of the Peruvian Amazon; among the Shipibo he is known as Kestenbetsa *

Guillermo Barros Schelotto Guillermo Barros Schelotto (; born 4 May 1973) is an Argentine football manager and former forward who currently manages the Paraguay national team. Barros Schelotto played 16 years of his professional career in the Argentine Primera Divis ...

(born 1973), Argentine former football player *

Guillermo Bermejo Guillermo Bermejo Rojas (6 October 1975) is a Peruvian politician. He was elected for the Congress of Peru for the 2021-2026 period. Biography He studied law at the Universidad Inca Garcilaso de la Vega. However, he did not finish his univer ...

(born 1975), Peruvian politician * Guillermo C. Blest (1800–1884), Anglo-Irish physician settled in Chile * Guillermo Cañas, Argentine tennis player *

Guillermo Chong Guillermo Baltazar Chong Díaz is a Chilean geologist and professor at the Catholic University of the North at Antofagasta, Chile. In 2018 he was named distinguished son ( es, hijo ilustre) of Arica. The mineral chongite is named after him. In ...

, Chilean geologist * Guillermo Coria, another Argentine tennis player *

Guillermo Dávila