Leon Black is an American financier and private equity executive best known as a co-founder of Apollo Global Management. He became a major figure in alternative investments through large leveraged buyouts, credit strategies, and long-cycle capital allocation in U.S. and international markets.

Beyond finance, he has also been known for his high-profile activity in the art world as a collector and patron. His public profile has remained prominent across business, legal, and media coverage tied to corporate leadership and personal networks.