Sakauchi 【阪内】3 The Japanese surnames etymology dictionary.
Hokkaidou , Shizuoka-ken , Aomori-ken . Terrain . From island like land and entrance. Shizuoka-ken Hamamatsu-shi Tenryu ku Haruno cho Kuda, Aomori-ken Hirosaki-shi Soma, Gifu-ken Mino-shi Distribution in Gokurakuji. Yamanashi-ken Hokuto-shi It was in the Edo era in Hakushu-cho Shirasu. Gifu-ken Seki-shi Shimabuchi's small island is a place name with a record since the Edo period.