Etymology and distribution of 大槌.

Oodzuchi 【大槌】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Iwate-ken .

① Kagoshima-ken Minamikyuushuu-shi Birth origin Odashiro in the prefecture town county. There was Odashiro mansion in the same place in the Edo period as a system of division.

② Originated from Iwate-ken Oushuu-shi Esashi Tahara (formerly Odashiro (Kodashiro)). A place name with a record since the Warring States Period.

Ootsuchi 【大槌】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Akita-ken Yuzawa-shi . A variant of 小田島 .