Etymology and distribution of 高宇知.

Takauchi 【高宇知】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Hokkaidou . A variant of 山吹 . Hokkaidou Sorachishi-chou Kuriyama-chou Meiji New surname by Monk of Monk's Memorial Temple in Minami Shimada. In Temple it is said that it is from Yeongtang which is the Chinese name of Yumabuki of the suicide name. 山吹 Yamabuki reference.