Betanzos is a surname.
Notable people with this name include Domingo Betanzos, (?-1549) was a Spanish Dominican missionary to Central America Juan de Betanzos (1510–1576), wrote one of the most important sources on the conquest of the Incan civilization, Narrative of the Incas Miguel Betanzos (1962-), an Argentine novelist Odón Betanzos (1925–2007), a Spanish poet, novelist, literary critic and professor Pedro de Betanzos (?-1570), a Spanish Franciscan missionary and linguist. Yoandri Betanzos (1982-), a Cuban athlete competing in the triple jump.