Etymology and distribution of 堅岡.

The Japanese surnames etymology dictionary.
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Ratio of 堅岡.

カンマ区切りで複数の名字を指定できます。

Etymology of 堅岡

Distribution of 堅岡
Ranking
1 Miyagi-ken(0.00208%)
2 Toyama-ken(0.000342%)
3 Kagoshima-ken(0.000203%)
4 Toukyou-to(0.000199%)
5 Saitama-ken(0.000147%)
6 Hyougo-ken(Very rare)
7 Oosaka-fu(Very rare)