Keith D. Black (born October 16, 1980) is a financier, screenwriter and former DNA magazine model, who was born in South Africa and grew up from a young age in San Diego, California. He has dual citizenship in the United Kingdom and the United States. He is best known as the heir apparent to the Black family, described in the early 1990s as one of Great Britain's most influential entertainment and political dynasties. Black is recognized for co-writing Princess (2006) and House of God (2008). He is the COO of an asset management firm.