Etymology and distribution of 天良.

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!

「天良」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 天良

Distribution of 天良
Ranking
1 Mikata-gun Kami-chou(0.221%)
2 Katano-shi(0.0124%)
3 Kyouto-shi Yamashina-ku(0.0105%)
4 Asago-shi(0.00967%)
5 Izunokuni-shi(0.00788%)
6 Akou-shi(0.007%)
7 Kokubunji-shi(0.00546%)
8 Sanda-shi(0.00505%)
9 Jouyou-shi(0.00498%)
10 Miki-shi(0.00486%)
11 Tatsuno-shi(0.0046%)
12 Minoo-shi(0.00404%)
13 Toyooka-shi(0.00401%)
14 Oosaka-shi Higashiyodogawa-ku(0.00351%)
15 Kawasaki-shi Nakahara-ku(0.00306%)
16 Koube-shi Suma-ku(0.00273%)
17 Koube-shi Kita-ku(0.0022%)
18 Numadzu-shi(0.00201%)
19 Neyagawa-shi(0.00199%)
20 Tottori-shi(0.00197%)
21 Kakogawa-shi(0.0017%)
22 Himeji-shi(0.0016%)
23 Takatsuki-shi(0.00132%)
24 Toyonaka-shi(0.00131%)
25 Sakai-shi(0.00114%)
26 Amagasaki-shi(0.00107%)