Etymology and distribution of 則友.

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!

「則友」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 則友

Distribution of 則友
Ranking
1 Shikokuchuuou-shi(0.0368%)
2 Mikata-gun Mihama-chou(0.0286%)
3 Niihama-shi(0.0249%)
4 Suzu-shi(0.0146%)
5 Ishinomaki-shi(0.0121%)
6 Oosaka-shi Ten'nouji-ku(0.011%)
7 Imabari-shi(0.00966%)
8 Shinguu-shi(0.00934%)
9 Konan-shi(0.00881%)
10 Minamibousou-shi(0.00679%)
11 Tsuruga-shi(0.00563%)
12 Oosaka-shi Tsurumi-ku(0.00558%)
13 Kinokawa-shi(0.0051%)
14 Sapporo-shi Nishi-ku(0.00479%)
15 Ibaraki-shi(0.00401%)
16 Kyouto-shi Yamashina-ku(0.00351%)
17 Yao-shi(0.00346%)
18 Koutou-ku(0.00312%)
19 Otaru-shi(0.00224%)
20 Sapporo-shi Higashi-ku(0.00206%)
21 Ichihara-shi(0.00181%)
22 Hirakata-shi(0.00125%)
23 Miyazaki-shi(0.00119%)
24 Nagano-shi(0.00103%)
25 Higashioosaka-shi(0.000934%)
26 Okayama-shi(0.000689%)