Etymology and distribution of 龝岡.

Akioka 【龝岡】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Okayama-ken , Hyougo-ken , Tottori-ken .

① Okayama-ken Tsuyama-shi Day - based is based. It was in the Edo period in the same place.

② Hyougo-ken Shisou-shi Originated from Akihisa, a small figure in Iwano near Chikara-cho.

③ Tottori-ken Touhaku-gun Yurihama-chou Kurume is a place name with a record since the Edo period. It is distributed in the same place. There is 秋田 surname in the same place. 秋田 Akita reference.