聖多明哥
He married Brazilian model Vera Rechulski and they had two children: Tatiana Santo Domingo (born 1983) and Julio Mario Santo Domingo, III (born 1985). At the time of his death, he was survived by his parents and half-brothers Alejandro Santo Domingo, a financier and the family's successor as director of the Santo Domingo Group, and Andrés Santo Domingo, a music industrialist.