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,
Queen Sofía Spanish Institute exhibition entitled "Balenciaga:Spanish Master". This was the first exhibition to consider the impact of Spain’s culture, history and art on one of its greatest twentieth century sons, the legendary designer Cristóbal Balenciaga (1895–1972). Conceived of by our Chairman, Oscar de la Renta, and curated by Hamish Bowles, the exhibition drew on Balenciaga clothing and supporting historical and regional Spanish dress from museum and private collections in the United States, Canada, France and Spain. The exhibition and its accompanying catalogue focused on the influence of Balenciaga’s native country on the designer’s creative process and work, considered the influences on his designs