Guillen

Guillen can refer to several things. Most commonly, it is a Spanish surname. Notable individuals with this surname include several athletes, such as former Major League Baseball pitcher Liván Hernández and his brother Livan Guillen. In the realm of sports, the name is also associated with the Guillen family, a prominent baseball dynasty that includes former MLB players and managers.

Beyond individuals, Guillen might also appear as a place name, though specific locations are less widely recognized without further context. The etymology of the surname Guillen is believed to be derived from the Germanic given name William, meaning "resolute protector." It is a surname found in Spain and across Latin America.