Etymology and distribution of 国光.

The Japanese surnames etymology dictionary.
https://play.google.com/store/apps/details?id=info.jigensha.jcedfreeGoogle Play で手に入れよう https://apps.apple.com/us/app/id1471109324
↑オフライン検索できるアプリもどうぞ
在日通名大全

日本初、在日通名の研究書「在日通名大全」発売中!
ネットの電話帳 住宅地図 マッポン!

「国光」さんの名字の分布比率。

カンマ区切りで複数の名字を指定できます。

Etymology of 国光

Distribution of 国光
Ranking
1 Yamaguchi-ken(0.0289%)
2 Okayama-ken(0.0128%)
3 Kouchi-ken(0.0112%)
4 Hyougo-ken(0.00862%)
5 Hiroshima-ken(0.00591%)
6 Gifu-ken(0.00509%)
7 Nara-ken(0.00178%)
8 Oosaka-fu(0.00161%)
9 Kumamoto-ken(0.00137%)
10 Hokkaidou(0.00133%)
11 Toukyou-to(0.00129%)
12 Ehime-ken(0.00123%)
13 Fukuoka-ken(0.00119%)
14 Ishikawa-ken(0.00102%)
15 Kyouto-fu(0.000998%)
16 Shimane-ken(0.000926%)
17 Kanagawa-ken(0.00092%)
18 Aichi-ken(0.000874%)
19 Nagasaki-ken(0.000773%)
20 Chiba-ken(0.000617%)
21 Iwate-ken(0.000571%)
22 Saitama-ken(0.000441%)
23 Yamanashi-ken(0.000422%)
24 Miyagi-ken(0.000417%)
25 Kagoshima-ken(0.000407%)
26 Miyazaki-ken(0.000339%)
27 Shizuoka-ken(0.000333%)
28 Nagano-ken(0.000328%)
29 Ibaraki-ken(0.000285%)
30 Mie-ken(0.000219%)
31 Niigata-ken(0.000161%)