Marianne Viktoria Armgard Helene Doria Freifrau von Weizsäcker, née von Kretschmann (born May 17, 1932 in Essen) is the wife Richard von Weizsäcker, the former President of Germany.
Her mother Asta was the adopted daughter of prominent banker and industrialist Fritz von Waldthausen. Marianne and Richard von Weizsäcker married in 1953, and have four children, including Robert K. von Weizsäcker, Professor of Economics.
Her husband served as Governing Mayor of Berlin (West Berlin) from 1981 to 1984, when he was elected President. He was reelected for a second term in 1989. During her husbands tenure, Marianne von Weizsäcker was the patron of several charitable organisations, including the Müttergenesungswerk.