Daniel Gilbert (born January 17, 1962) is an American billionaire, businessman, and philanthropist. He is the co-founder and majority owner of Rocket Mortgage, founder of Rock Ventures, and owner of the National Basketball Association's Cleveland Cavaliers. Gilbert owns several sports franchises, including the American Hockey League's Cleveland Monsters, and the NBA G League's Cleveland Charge. He operates the Rocket Mortgage FieldHouse in Cleveland, Ohio, home to the Cavaliers and Monsters. As of January 2023, Forbes estimated his net worth at US$18.3 billion.