Paul Samuel Reinsch

Paul S. Reinsch
Portrait of Paul Samuel Reinsch.
Born(1869-06-10)June 10, 1869
DiedJanuary 26, 1923(1923-01-26) (aged 53)
NationalityAmerican
Alma materUniversity of Wisconsin–Madison
Scientific career
FieldsPolitical science
Doctoral advisorFrederick Jackson Turner

Paul Samuel Reinsch (June 10, 1869 – January 26, 1923), was an American political scientist and diplomat. He played an influential role in developing the field of international relations. He helped form the American Political Science Association and the American Society of International Law.

He was a strong proponent of the Open Door Policy (a system of equal trade and investment and to guarantee the territorial integrity of Qing China) and a critic of imperialism.