鸠山 Traditional form: 鳩山 Pinyin (reading): Jiūshān Definitions: Hatoyama, Japanese name and place name Hatoyama Yukio (1947-), Japanese Democratic Party politician, prime minister 2009-2010 Characters: 鸠 - pigeon; to collect, to assemble 山 - mountain, hill, peak Traditional characters: 鳩 - pigeon; to collect, to assemble 山 - mountain, hill, peak