Morgenthau is a German surname meaning "morning dew". Notable people with the surname include:
Hans Morgenthau (1904–1980), German-American international relations theorist Henry Morgenthau Sr. (1856–1946), American diplomat and businessman son: Henry Morgenthau Jr. (1891–1967), United States Secretary of the Treasury and proponent of the Morgenthau Plan wife: Elinor Morgenthau (1891–1949) (née Fatman), American Democratic party activist son: Robert M. Morgenthau (1919–2019), American lawyer son: Henry Morgenthau III (1917–2018) American author and television producer son: Kramer Morgenthau (1966–) American cinematographer
In popular culture Some fictional characters with this surname are: Karl Morgenthau Karli Morgenthau
See also Morgenthau Lectures, named after Hans Morgenthau Ambassador Morgenthau's Story (1918), published memoirs of Henry Morgenthau Sr. Morgenthau Report, a report issued by the United States' commission led by Henry Morgenthau Sr. USCGC Morgenthau (WHEC-722), a U.S. Coast Guard cutter Morgenthau Plan, a plan for the occupation of Germany after World War II.