Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
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群馬県 邑楽郡千代田町 瀬戸井の名字

About 200 【川島】6
About 30 【上村】6
About 20 【太田】7
About 20 【久保田】6
About 10 【岡田】7
About 10 【小沢】6
About 10 【清水】7
About 10 【矢島】6
About 10 【遠藤】7
About 10 【大谷】6
About 10 【武井】6
About 10 【服部】6
About 10 【福田】7
Very rare 【相川】6
Very rare 【油井】5
Very rare 【荒井】6
Very rare 【新島】5
Very rare 【飯塚】6
Very rare 【井上】7
Very rare 【石川】7
Very rare 【岡部】6
Very rare 【小島】7
Very rare 【小寺】6
Very rare 【小林】7
Very rare 【金子】7
Very rare 【川邉】3
Very rare 【相良】5
Very rare 【関口】6
Very rare 【高島】6
Very rare 【高西】4
Very rare 【田代】6
Very rare 【谷津】5
Very rare 【南室】2
Very rare 【根岸】6
Very rare 【野中】6
Very rare 【広島】5
Very rare 【細井】6
Very rare 【柳沢】6
Very rare 【山口】7
Very rare 【渡辺】7