Hontiveros was married to violinist Vicenta Ruiz Pardo, and had ten children. Of their offsprings, their eldest child
Daisy Hontiveros-Avellana, became a famous theater actress and director, and was awarded
National Artist for Theater.
Eduardo Hontiveros, their sixth child, became a
Jesuit priest and was known as the Father of Filipino Liturgical Music, and an Awardee of the
Presidential Medal of Merit. Their eighth child,
Nita Hontiveros-Lichauco, founded and became President of the
Philippine Animal Welfare Society, the premier non-government organization for animal welfare in the country and was subsequently known as the Mother of Animal Welfare in the Philippines. Hontiveros' notable sons-in-law include National Artist for Theater and Film
Lamberto Avellana and Harvard-educated lawyer and economist Alejandro Lichauco, who was an elected delegate of the 1st District of Rizal to the
Constitutional Convention of 1971 (which was called to change the 1935 Philippine Constitution, which Hontiveros took part in framing). Other notable members of his family include his grandchildren: actor and director
Jose Mari Avellana; tv host, journalist and business executive Maan Hontiveros; writer and
Palanca Award winner David Hontiveros; journalist and stateswoman
Risa Hontiveros (who became a Senator like him), journalist
Pia Hontiveros (chief news correspondent of
CNN Philippines), and grandson-in-law: painter, sculptor and
Chevalier de l’Ordre des Arts et des Lettres- conferred artist
Allan Cosio. His great grandchildren include singer
Barbie Almalbis and actor-model
Luis Hontiveros. ==Death==