Hiroshi Yamamoto (山本 博司, Yamamoto Hiroshi, born 1954) is a Japanese politician of the New Komeito Party, a member of the House of Councillors in the Diet (national legislature). A native of Yawatahama, Ehime and graduate of Keio University, he was elected to the House of Councillors for the first time in 2007 after working at IBM.