Etymology and distribution of 旺山.

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

Yamagata-ken , Hokkaidou , Toukyou-to .

① Yamagata-ken Obanazawa-shi birth departure . A place name with a record since the Edo period.

② Kagoshima-ken Shibushi-shi Originated from the cutout of a small character in Ariake Town Nomura. In the Edo Period there was a gate of divorce system of the gate division system.