Etymology and distribution of 入原.

Irihara 【入原】^{レベル3
About 140}  The Japanese surnames etymology dictionary.

Miyazaki-ken , Ishikawa-ken , Fukuoka-ken . Oshima, distribution including also Uno Shima.

① Miyazaki-ken Miyakonojou-shi Originated from Uzima (Uonojima) in Kochino town. There was Umunjima (Unojima) gate of the gate division system in the Edo period in the same place. Last name is Uenoshima.

② Ishikawa-ken Housu-gun Anamizu-machi Origin of Ukima. A place name with a record since the Edo period.

③ Fukuoka-ken Buzen-shi Origin of Ujima (Unosima). A place name with a record since the Edo period. Tell the place name was called "Unozu (Uno sama)". It is distributed in the same place. Uchinomori 's underwear is "Unojima." The last name is Ushima.