Hatoyama, Ichiro, 1883-1959, Japanese statesman. A graduate of the law school of Tokyo Imperial Univ., he was first elected to the lower house of the Japanese legislature in 1915. Hatoyama was education minister in the Inukai and Saito cabinets (1931-34). A leader of the prewar Seiyukai party, he organized the conservative postwar Liberal party and became its first president. In a series of moves he formed the Democratic party and became prime minister, deposing Shigeru Yoshida and forming three successive cabinets (1954-56).

Hatoyama, Yukio, 1947-, Japanese politician, grad. Tokyo Univ. (B.S., 1969), Stanford (Ph.D, 1976). Though his grandfather was Prime Minister Ichiro Hatoyama and his father was foreign minister, he trained as an engineer and did not run for office until 1986, when he was first elected to the Diet. In 1993 he left the Liberal Democratic party (LDP), which his grandfather had cofounded, and served in a secondary cabinet post (1993-94) in a short-lived coalition government. Hatoyama cofounded the Democratic party of Japan (DPJ) in 1996, and later served as DPJ leader (1999-2002, 2009-). In 2009, after the party's landslide win over the LDP, he became prime minister.

Hatoyama is a Japanese surname and place name.

Places:

• Hatoyama (鳩山町; -machi), a town located in Hiki District, Saitama, Japan

People:

• Ichirō Hatoyama, 52nd, 53rd and 54th prime minister of Japan
• Yukio Hatoyama, grandson of Ichiro Hatoyama and former DPJ party chairman
• Kunio Hatoyama, Japanese politician, Current Justice minister, (Liberal Democratic Party), grandson of Ichiro Hatoyama, and younger brother of Yukio.