Peter von Siemens (January 29, 1911, Berlin – May 23, 1986) was a German industrialist.
He was the great grandson of Ernst Werner von Siemens. He was chairman of the Supervisory Board of Siemens AG from 1971 to 1981. During his tenure, the company became the fifth largest electrical firm in the world.
Married to Julia Lienau, they were the parents of:
- Katharina von Siemens (born December 24, 1938, Berlin), married on June 24, 1959 in Geiselgasteig, near Munich, to Kraft Hans Konrad 7.te Fürst zu Hohenlohe-Oehringen Herzog von Ujest (born January 11, 1933, Breslau), the parents of:
- Margarita Katharina Elisabeth Prinzessin zu Hohenlohe-Oehringen (April 28, 1960, Munich - February 24, 1989, near Allershausen, killed in a car wreck), married on June 8, 1984, Amorbach (civ) and on June 16, 1984 in Neuenstein (rel) to Karl-Emich Nikolaus Friedrich Hermann Erbprinz zu Leiningen (born June 12, 1952, Amorbach), the parents of:
- Christina Valerie Julia Prinzessin (born November 27, 1961, Munich), married on May 18, 1995 in Neuenstein (civ) and on May 20, 1995 in Neuenstein (rel) to Jan-Gisbert Schultze (born February 12, 1961)
- Kraft Constantin Franz Emich Erbprinz zu Hohenlohe-Oehringen (born October 31, 1966, Munich), married on June 5, 2004 in Preetz to Carolin von Wendorff, the parents of: