Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
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長野県 上伊那郡辰野町 今村の名字

About 70 【竹入】4
About 40 【熊谷】6
About 30 【有賀】6
About 20 【堀内】6
About 20 【三浦】7
About 10 【竹内】7
About 10 【大槻】6
About 10 【座光寺】3
About 10 【備前】4
About 10 【藤沢】6
Very rare 【荒川】6
Very rare 【馬場】6
Very rare 【大橋】6
Very rare 【大森】6
Very rare 【小沢】6
Very rare 【斎藤】7
Very rare 【土屋】6
Very rare 【中村】7
Very rare 【中山】7
Very rare 【野田】6
Very rare 【野村】6
Very rare 【長谷川】7
Very rare 【福島】6
Very rare 【森田】7