Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
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茨城県 結城郡八千代町 瀬戸井の名字

About 60 【広瀬】6
About 50 【生井】5
About 50 【小野里】5
About 30 【高島】6
About 30 【大久保】6
About 20 【藤本】7
About 20 【矢中】3
About 10 【青柳】6
About 10 【高嶋】5
About 10 【野口】6
About 10 【荒木】6
About 10 【市村】6
About 10 【江連】5
About 10 【北島】6
About 10 【初沢】4
About 10 【塙】5
About 10 【樋口】6
Very rare 【相沢】6
Very rare 【荒川】6
Very rare 【大塚】6
Very rare 【小島】7
Very rare 【樫山】5
Very rare 【吉川】6
Very rare 【君島】5
Very rare 【古谷野】4
Very rare 【柴崎】6
Very rare 【塚原】6
Very rare 【土戸】4
Very rare 【中山】7
Very rare 【廣瀬】5
Very rare 【本川】5
Very rare 【山田】7