Etymology and distribution of 廬原.

Iorihara 【廬原】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Shiga-ken , Iwate-ken , Toukyou-to .

① Origin of Shiga-ken Nagahama-shi (formerly Ika). Place name with a record in 709 (2 years in Wako). Place name also pronounced Ikaga, Ikoga. Kyouto - fu Kyouto - shi had a family name of Ika (Ikaga) in Heian era.

② Originated from Oosaka-fu Hirakata-shi 's Ikiga (Ikaga (formerly Ika Township)). A place name with a record since the Nara period. The place name was also written as "Ikahaga".

Ihorihara 【廬原】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Hiroshima-ken , Oosaka-fu . Terrain . Hiroshima-ken Mihara-shi From the top of the cloud cloud surname of the grass in Yamato-cho. 雲地 Kumoji reference.