Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
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岐阜県 郡上市 山田の名字

About 110 【日置】5
About 80 【福手】4
About 80 【水口】6
About 80 【山田】7
About 70 【馬場】6
About 30 【渡辺】7
About 20 【池田】7
About 20 【小酒井】5
About 20 【松原】6
About 10 【田中】7
About 10 【竹中】6
About 10 【山中】6
Very rare 【伊藤】7
Very rare 【大善】3
Very rare 【清水】7
Very rare 【野々村】5
Very rare 【羽部】4
Very rare 【村瀬】6