Baron Kijuro Shidehara (?? ???, Shidehara Kijuro, 13 September 1872 – 10 March 1951) was a prominent pre–World War II Japanese diplomat and Prime Minister of Japan from 1945 to 1946.
He was a leading proponent of pacifism in Japan before and after World War II, and was also the last Japanese Prime Minister who was a member of the kazoku.
His wife, Masako, was the fourth daughter of Iwasaki Yataro, founder of the Mitsubishi zaibatsu.