Gerda Munsinger (born Gerda Hesler or Heseler or Hessler, also known as Olga Schmidt and Gerda Merkt; c. September 10, 1929 – November 24, 1998) was an East German prostitute and alleged Soviet spy (although these allegations were ultimately unproven). She immigrated to Canada in 1955. Munsinger was the central protagonist of the Munsinger Affair, the first national political sex scandal in Canada, and was dubbed "the Mata Hari of the Cold War" because of her involvement with several Canadian politicians.[1] She returned to Germany in 1961, became the centre of press attention in 1966 when the scandal was publicly revealed, and was the subject of a feature film.