Eiji Kidoguchi is a Japanese politician who is a member of the House of Councillors of Japan,[1] serving for the Iwate at-large district as a member of the Constitutional Democratic Party of Japan.

Kidoguchi was first elected in 2016,[2][3], but lost the seat in 2022.

Kidoguchi won the seat back in by-election in 2024 after the resignation of the incumbent, Megumi Hirose.

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