Etymology and distribution of 上口屋.

Kamiguchiya 【上口屋】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Oosaka-fu , Nara-ken , Ishikawa-ken .

① Topography . Heteromorphism in the 北 . Toyama-ken Tonami-shi Takasu tells Meiji new surname .

② Origin of Ehime-ken Kita-gun. A place name with a record since the Heian period. Ishikawa-ken Hakui-gun Houdatsushimizu-chou Kitagawajiri, Ishikawa-ken Kahoku-gun Tsubata-machi Tradition at Kurami.

③ Convention . Kitakadai stands short. Mie - ken Taki - gun In the Meiwa - chou line, say that the descendant of Mr. Kitabata called the Kitaoka surname and renamed it further. Estimated in the Warring States Period. 北岡 Kitaoka reference. 北畠 Kitabatake reference.