List of Famous people named Guillermo

Guillermo Fernández Vara is a Spanish politician from the Spanish Socialist Workers' Party who has been the President of the Regional Government of Extremadura since 2015. He previously served as the President of Extremadura from 2007 to 2011. Fernández had also previously served as Minister for Health and Social Security in Extremaduran regional governments.

Guillermo García López is a professional tennis player from Spain. He has won five singles titles and achieved a career-high singles ranking of world No. 23 in February 2011.

Guillermo Nielsen is an Argentinian economist, currently president of the State-owned oil company YPF. He also served as Ambassador of Argentina in Germany designated by President Cristina Fernández de Kirchner between 2008 and 2010.

Guillermo Montenegro is an Argentine lawyer, former judge and politician.

Guillermo Galván Galván is a Mexican general. He formerly served as secretary of National Defense for the government of Felipe Calderon. He was succeeded 1 December 2012 by Salvador Cienfuegos Zepeda.

Guillermo Molina Ríos is a Spanish water polo player who competed for the Spain men's national water polo team in four consecutive Summer Olympics (2004 Athens, 2008 Beijing, 2012 London and 2016 Rio. He was the joint top goalscorer at the 2016 Olympics, with 19 goals. Afterwards he competed for Italy men's national water polo team in the 2018 Men's European Water Polo Championship. He helped Italian water polo club Pro Recco win the LEN Champions League in 2009–10 and 2011–12 season.

Guillermo Ortega Ruiz is a Mexican journalist. He was Televisa Nightly News Anchor.

Guillermo Gorostiza Paredes was a Spanish footballer who played as a forward.

Guillermo Pacheco Pulido is a Mexican politician. On 21 January 2019, the Congress of Puebla elected him as acting Governor of Puebla, a position that he served until July 31 of the same year.

Guillermo Allison Revuelta is a Mexican professional footballer who currently plays for Cancún F.C. on loan from Cruz Azul. His debut for Cruz Azul in the Liga MX was in a game against Toluca where he blocked the penalty in the last play of the game which gave Cruz Azul the win, 2-1.