Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
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千葉県 佐倉市 内田の名字

About 100 【山本】7
About 40 【粟生】4
About 30 【植草】5
About 30 【大野】7
About 10 【赤地】4
About 10 【篠原】6
About 10 【永井】6
Very rare 【高畑】6
Very rare 【後藤】7
Very rare 【高橋】7
Very rare 【豊田】6
Very rare 【渡辺】7