Etymology and distribution of 笈原.

Oihara 【笈原】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Gunma-ken , Saitama-ken , Hokkaidou . Terrain . From the fountain of the back. Gunma-ken Shibukawa-shi Based in Yukita Ryuko. It was in the Muromachi period in the same place. Tell him that Izumi of Izumi in the eastern part of the Tohoku region (formerly Mutsu) is here. Period, location unknown. There was a place name of Izumi in the Muromachi period in Fukushima-ken . Location unknown. Fukushima-ken Aidzuwakamatsu-shi Kitazimetsu- cho Izumi was a place name with a record since the Edo period. The place name was also written as "fountain". Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo era at the Kaga clan in the Clan office.