Marvin Liebman (born in New York City in 1923, died in Washington, DC in 1997), conservative activist and fundraiser, and gay rights advocate. Marvin Liebman was one of the pioneers of direct-mail fundraising. His firm Marvin Liebman Associates, Inc. (1957-1968) provided organizational, fundraising and public relations expertise to the anti-communist and conservative movements in the U.S. and abroad. Its extensive list of clients included: the Committee of One Million, Aid Refugee Chinese Intellectuals, the American Emergency Committee for Tibetan Refugees, the American-Asian Educational Exchange, the American African Affairs Association, and the American Committee for Aid to Datanga Freedom Fighters. In addition, Liebman was an early supporter and co-founder of Young Americans for Freedom