Etymology and distribution of 大口.

Ooguchi 【大口】^{レベル5
About 7,200}  The Japanese surnames etymology dictionary.

越地 Koshiji reference.

Ookuchi 【大口】^{レベル5
About 7,200}  The Japanese surnames etymology dictionary.

Kagoshima-ken Akune-shi , Oosaka-fu , Okayama-ken .

① Kagoshima-ken Akune-shi birth of Nishigami fall. In the same era there was a fallow gate in the Edo era.

② Creation . Okayama-ken In Maniwa-shi Miyaji tells that the soldier has come and resigned using "fall". Estimated in the Warring States Period. There is also a story that it became a blacksmith later.

③ Kanagawa-ken Hadano-shi It was in Soneya during the Edo period.

Daiguchi 【大口】^{レベル5
About 7,200}  The Japanese surnames etymology dictionary.

Kagoshima-ken Satsumasendai-shi , Kagoshima-ken Satsuma-gun Satsuma-chou . Terrain . From the side of the temple. Kagoshima-ken Satsuma- chun Satsuma-chou from the gateon door of the gate division system which was in the Edo period in the funeral. The gate name was also written as "Doonosaki."