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Tokyo 10th district is a constituency of the House of Representatives in the Diet of Japan (national legislature). As of 2012, 351,821 eligible voters were registered in the district. It covers northwestern parts of the former city of Tokyo. Originally it consisted of the ward of Toshima and parts of Nerima, but after redistricting in 2017 it comprises parts of four wards, Toshima, Nerima, Nakano and Shinjuku. The current representative, elected in the 2017 general election, is Hayato Suzuki.