Kōichi Katō is the name of two House of Representatives of Japan's members:
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Koichi Kato (LDP) (加藤紘一, 1939–2016), Japanese politician
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Koichi Kato (DPJ)
is a Japanese politician from Tokyo and a member of the Democratic Party of Japan. He represents the House of Representatives Tokyo 20 electoral district. A native of Chiyoda, Tokyo
is a special ward located in central Tokyo, Japan. It i ...
(加藤公一, born 1964), Japanese politician
{{hndis, Kato, Koichi