Alderete is a surname. Notable people with the surname include:
Bernardo de Alderete (1565–1645), Spanish writer Elías Alderete (born 1995), Argentine footballer Jerónimo de Alderete (c. 1518–1556), Spanish conquistador Jorge Alderete (born 1971), Argentine illustrator Juan Alderete (born 1963), Mexican-American musician Juan Carlos Alderete (born 1952), Argentine trade unionist and politician Martín Carrillo Alderete (died 1653), Roman Catholic prelate Reinaldo Alderete (born 1983), Argentine footballer Terry Alderete (1945–2013), American businesswoman
See also Alderetes, city in the Cruz Alta Department, Tucumán Province, Argentina