Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
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長野県 上伊那郡宮田村 大久保の名字

About 100 【小田切】5
About 60 【細田】6
About 30 【小松】6
About 30 【吉沢】6
About 10 【伊藤】7
About 10 【加藤】7
About 10 【林】7
About 10 【矢亀】3
About 10 【原】7
About 10 【鈴木】7
About 10 【羽場】5
About 10 【藤川】6
About 10 【宮下】6
About 10 【吉澤】5
Very rare 【赤羽】5
Very rare 【有賀】6
Very rare 【伊沢】5
Very rare 【市瀬】5
Very rare 【小池】6
Very rare 【大沢】6
Very rare 【小久保】6
Very rare 【小椋】6
Very rare 【小沢】6
Very rare 【木下】6
Very rare 【北沢】6
Very rare 【北澤】5
Very rare 【倉住】4
Very rare 【下島】5
Very rare 【広本】5
Very rare 【酒井】7
Very rare 【佐竹】6
Very rare 【滝沢】6
Very rare 【竹村】6
Very rare 【辰野】5
Very rare 【田中】7
Very rare 【谷中】5
Very rare 【土田】6
Very rare 【筒井】6
Very rare 【寺沢】6
Very rare 【平沢】6
Very rare 【伏見】5
Very rare 【松井】6
Very rare 【松下】6
Very rare 【三浦】7
Very rare 【薮本】5
Very rare 【山本】7
Very rare 【横山】7
Very rare 【若杉】5
Very rare 【割田】4