Marjorie Hecht Sonnenfeldt (born February 8, 1931, in Baltimore, Maryland) is an American public relations executive and consultant from the prominent Hecht department store family. Daughter of Stewart E. Hecht, vice president of Hecht Brothers department store in Baltimore, and the late Sylvia Cahn Hecht, she attended Park School in Baltimore (class of 1948) and earned an A.B. with magna cum laude honors from Smith College in 1952. She married Helmut Sonnenfeldt in 1953, following her engagement announced that year, and worked briefly at the U.S. Department of State in Washington, D.C. Sonnenfeldt advanced to vice president at the public relations and lobbying firm Fleishman-Hillard, Inc., starting in 1987, and has been recognized as a noteworthy executive in her field. She held civic roles including chair of the D.C. Board of Appeals (noted in 1981) and has served on the boards of the District of Columbia chapter of the American Jewish Committee since 1982 and the Lourie Center for Infants and Young Children in Rockville, Maryland, since 1993. Widowed since her husband's death in 2012, she resided in Chevy Chase, Maryland.