Elorduy is a Spanish surname. Notable people with the surname include:
Carmelo Elorduy (1901–1989), Spanish Sinologist Eugenio Elorduy Walther (1940–2023), Mexican politician Iñigo Vicente Elorduy (born 1998), Spanish professional footballer José Ernesto Gil Elorduy (1943–2026), Mexican politician Juan Elorduy (1888–1977), Spanish footballer