Donald Cameron Clark (August 9, 1931 – November 28, 2020) was an American businessman and philanthropist who was chairman of the board and chief executive officer of Household International, a former Fortune 100 company and one of the nation's leading consumer financial services companies.

Donald C. Clark served as the Chief Executive Officer of Household International from 1982 until September 1994.

Clark served as a board member for many Fortune 500 corporations, not-for-profit organizations, academic institutions, and private investment groups.

[4] After serving in the United States Army as an officer, Clark received a degree in business administration from Clarkson University (1953) and an MBA degree from Kellogg Graduate School of Management at Northwestern University (1961).

After graduating from the Executive MBA program at Kellogg, they quickly invited Clark back to teach courses in finance and corporate strategy.