Heydrich is a German surname. Notable people with the surname include:
Reinhard Heydrich (1904–1942), high-ranking German Nazi official during World War II and a major perpetrator of the Holocaust Heinz Heydrich (1905–1944), younger brother of Reinhard Heydrich Lina Heydrich (1911–1985), wife of Reinhard Heydrich Richard Bruno Heydrich (1865–1938), German opera singer and composer, father of Reinhard Heydrich
See also Heidrich Hydrick