Etymology and distribution of 開内.

Hirakiuchi 【開内】^{レベル3
About 100}  The Japanese surnames etymology dictionary.

Hokkaidou , Kanagawa-ken , Yamagata-ken Tendou-shi . Distribution that also includes kooyu.

① Personal name . Hokkaidou Eniwa-Shi in Toyama-ken and bestowed the autumn leaves last name by winning the Chico name of Momijiyama in sight sumo of the lord in the telling and was changing one's family name from Matsuzaki last name. Estimated in the Edo period. 松崎 Matsuzaki reference. Hokkaidou Eniwa-shi In Shimamatsu -ken Town tells that she came from Toyama-ken in about 1890.

② things . From the event that leaf color changes. Yamagata-ken Tendou-shi In Oenomori, it is said that Yamagata-ken Tendou-shi Tazuru-machi was a Tendo samurai of the clan office in the Edo period. In the presumption from tradition it is a rename at the Meiji New surname. The real name is unknown. Pronunciation is Kooyu. Ibaraki-ken Hokota-shi Autumnal leaves have been recorded since the Edo period. In the same place I will tell that Mr. Ushimi resided in the Kamakura period and the place name was also called "next use". It is unknown whether the next will exist.

Hirauchi 【開内】^{レベル3
About 100}  The Japanese surnames etymology dictionary.

Fukui-ken Fukui-shi . Fukui-ken Fukui-shi Tell the fact that you were engaged in agriculture at Iura-cho. Estimated in the Edo period.