List of Famous people named Guillermo

Guillermo Ariel Pereyra is an Argentine retired footballer who played as a defensive midfielder.

Guillermo Andrés Marino is an Argentine former football midfielder. He was known for his teamwork and playmaking ability and could play in the center as well as on the wings.

Guillermo Alejandro Vázquez Herrera is a Mexican football former midfielder and most recently manager of Liga MX club Atlético San Luis.

Guillermo Alejandro Moscoso is a Venezuelan professional baseball pitcher who is currently a free agent. He has played in Major League Baseball (MLB) for the Texas Rangers, Oakland Athletics, Colorado Rockies and San Francisco Giants.

Guillermo Fernández Hierro, known simply as Guillermo, is a Spanish professional footballer who plays as a forward for Gimnàstic de Tarragona.

Guillermo Timoner Obrador is a retired Spanish cyclist. With six gold and two silver medals won in the UCI Motor-paced World Championships between 1955 and 1965 he is one of the most successful motor-paced racers of all times. During his career, which spanned 52 years, he also won 29 national titles in various cycling disciplines.

Guillermo Jones is a Panamanian professional boxer. He held the WBA cruiserweight title from 2008 to 2012, and challenged twice for the WBA super welterweight title in 1998.

Guillermo Rodríguez Lara, known as "Bombita", is a former military dictator of Ecuador who was in power from February 15, 1972 to January 11, 1976. He took courses in C&R&Bn Staff, Irregular Warfare Orientation, and Maintenance Management at the School of the Americas in Panama. As commander of the army, he led a military coup d'etat executed by a navy commander named Jorge Queirolo G. and forced president José María Velasco into exile, to Buenos Aires, Argentina. During his rule, drilling the country's oil reserves funded the construction of hospitals, schools, roads, the oil refinery at Esmeraldas, and new equipment for the armed services. The Ecuadorian military removed him from power in 1976.

Guillermo Gastón Cotugno Lima is an Uruguayan footballer who plays as a right back for Polish Ekstraklasa club Śląsk Wrocław.