Oscar de la Renta married Annette Engelhard (born 1939), daughter of Fritz Mannheimer and his wife Jane née Reiss, and adoptive daughter of her mother's second husband, Charles W. Engelhard, Jr. De la Renta had stepchildren from both marriages. His son-in-law Alex Bolen currently operates as Chief Executive Officer, and stepdaughter Eliza Bolen serves as Vice President of Licensing at Oscar de la Renta, LLC. De la Renta was regarded as an unofficial ambassador of the Dominican Republic, his home country, and held a diplomatic passport. He had homes there in Casa de Campo and Punta Cana, in addition to his residence in Kent,
Oscar De La Hoya who was at home watching the Latin Grammy Awards on television, saw De La Hoya escorting another woman, Puerto Rican singer Millie Corretjer, to the show. In 2000, EMI International released "Oscar De La Hoya". The self-titled CD is a Latin pop album with 13 tracks in both English and Spanish, written by Diane Warren and the Bee Gees, and was nominated for a Grammy. On October 5, 2001, De La Hoya married Millie Corretjer. They have two children together: a son, Oscar Gabriel De La Hoya (born December 29, 2005), and a daughter, Nina Lauren Nenitte De La Hoya