Etymology and distribution of 居原.

Ihara 【居原】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Iwate-ken , Ibaraki-ken , Aichi-ken . Gamma is rare.

① Fukushima-ken Iwaki-shi Originated in Iwama-machi. A place name with a record since the Kamakura period.

② Originated from Ibaraki-ken Kasama-shi Kamogo (old: Iwama Township). The name of a place with a record in the notation of "Ishima" during the Heian period.

③ Yamanashi - ken Nishiyatsushiro - gun Ichikawamisato - chou Introduction of Iwama. A place name with a record since the Heian period. The place name was also written as "Ishima", "Bannama".

④ Nagano-ken Kamiina-gun Iijima-machi Birth of Iijima Iwama. It was in the Muromachi Period.

⑤ Kanagawa-ken Yokohama-shi Birthplace of Iwama-cho, Hodogaya Ward. A place name with a record since the Warring States Period.

⑥ Aichi-ken Inazawa-shi Originated from the Inaba area (formerly Iwama). Place name recorded in the Muromachi period.

Ibara 【居原】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Yamaguchi-ken , Saga-ken . Yamaguchi-ken Yanai-shi It was in the Muromachi period in Shinjo. Yamaguchi-ken Yanai-shi Iyo- son Iwasaki is estimated from the person's name. It is distributed in the same place.