Donald H. Clark (born 1930 in New Jersey[1]) is an American writer, teacher, consultant and clinical psychologist who has specialized in group and individual work with gay people since 1968. His writing includes fiction, textbooks, and articles for both professional journals and popular magazines. He is the author of the best-selling book, Loving Someone Gay, now in its fifth edition, as well as its Spanish-language edition Amar a Alguien Gay, Someone Gay: Memoirs, Living Gay and As We Are.[2]