Etymology and distribution of 波口.

Namiguchi 【波口】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Miyazaki-ken .

① Topography . From the top of the pool. From the Ueno gate of the gate division system that was in the Edo period. An example of the location of the gate. Kagoshima-ken Kagoshima-shi Inagi, Kagoshima-ken Tarumizu-shi main castle.

② Kagoshima-ken Kimotsuki-gun Minamioosumi-chou Originated from Yukiyoshi, a subsidiary in the northern part of the Ryukyu River.