Guillermo Mendizábal (born 1954), retired Mexican footballer and manager
Gabriel de Mendizábal Iraeta "Primer Conde de Cuadro de Alba de Tormes" (14 May 1765, Vergara, Guipúzcoa) - 1 September 1838, Madrid) was a Spanish general officer who fought in the Peninsular War.
Sergio Mendizábal (3 July 1920, San Sebastián, Spain) is a retired Spanish film actor who made over 100 appearances in film between 1955 and 1996.