John J. McCloy, American lawyer and banker (b. 1895)
John Jay McCloy (March 31, 1895 – March 11, 1989) was an American lawyer, diplomat, banker, and a presidential advisor. He served as Assistant Secretary of War during World War II under Henry Stimson, helping deal with issues such as German sabotage, political tensions in the North Africa Campaign, and opposing the atomic bombings of Hiroshima and Nagasaki. After the war, he served as the president of the World Bank, U.S. High Commissioner for Germany, chairman of Chase Manhattan Bank, chairman of the Council on Foreign Relations, a member of the Warren Commission, and a prominent United States adviser to all presidents from Franklin D. Roosevelt to Ronald Reagan.

McCloy is best remembered as a member of the foreign policy establishment group of elders called "The Wise Men", a group of statesmen marked by nonpartisanship, pragmatic internationalism, and aversion to ideological fervor.