Diana Davis Spencer (born 1944) is an American philanthropist, heiress, and granddaughter of William S. Paley, founder of CBS. She maintains a low public profile while leading the Diana Davis Spencer Foundation, which she established and serves as president. The foundation, endowed with substantial assets from the Paley media fortune, supports conservative causes, free-market policies, educational initiatives aligned with traditional values, limited government, cultural conservatism, and organizations countering progressive influences in policy, media, and education. It has emerged as a significant player in right-leaning philanthropy, providing over $716,000 in grants to groups like the Gatestone Institute, Dennis Prager's media projects (including PragerU), and the Ethics and Public Policy Center between 2017 and 2019. Spencer's philanthropy reflects a commitment to Western cultural preservation, religious liberty, individual liberty, market-oriented solutions, school choice, anti-woke initiatives, and opposition to leftist ideologies. Her funding decisions have positioned her as a key player in the conservative donor ecosystem, supporting efforts to influence elections, media narratives, and cultural battles through strategic philanthropy. While details of her personal life remain private, she is married, with her spouse sharing the Spencer surname, and her ethnicity is White American, likely with roots in the Paley family's Jewish heritage from Russian origins.