Kazuhiro Haraguchi
 Kazuhiro Haraguchi (原口 一博 Haraguchi Kazuhiro born July 2 1959) is a Japanese politician of the Democratic Party of Japan (DPJ) a member of the House of Representatives in the Diet (national legislature). A native of Saga Saga and graduate of the University of Tokyo he was elected to the assembly of Saga Prefecture (District #1) for the first time in 1987 as a member of the Liberal Democratic Party serving there for two times.