Hermann von Siemens (August 9, 1885 – October 13, 1986) was a German industrialist who became head of the German electrical and electronics company Siemens AG in 1941 and served until 1956. He was the son of Arnold von Siemens and wife Ellen von Helmholtz and paternal grandson of Ernst Werner von Siemens and first wife Mathilde Duman. He died at the age of 101. He was also the grandfather of Henrik von Siemens and the great grandfather of Sophia and Philippa von Siemens.
Note: After 1945, Hermann was removed as head of company by Allied Forces to deal with war crime charges. After many months, including some in captivity - the charges were dropped so he could return as head of firm.