Etymology and distribution of 外山.

Toyama 【外山】^{レベル6
About 30,000}  The Japanese surnames etymology dictionary.

Yamaguchi-ken , Ehime-ken , Kouchi-ken .

① Kouchi-ken Kouchi-shi Haruno cho, Hirooka-ku, Hirooka-ku, Hirookaichi birth. A place name with a record since the Azuchi-Momoyama period. Hiroshima-ken was in the Warring States Period.

② variant of 広岡 . In Yamaguchi-ken Iwakuni-shi , Yamaguchi-ken Iwakuni-shi Yokoyama changed name "Hiroshi" which the Yoshikawa lord of the Iwakuni lord of the clan government used as a character in the early Edo period.

Originated from Ishikawa-ken Kanazawa-shi Hirooka (Hirooka (formerly Hirooka)). A place name with a record since the Kamakura period. The place name also pronounced Hiraoka.

Sodeyama 【外山】^{レベル6
About 30,000}  The Japanese surnames etymology dictionary.

Toyama-ken Himi-shi . There is a surname including "road". "Ga" is a favorable character.

Sotoyama 【外山】^{レベル6
About 30,000}  The Japanese surnames etymology dictionary.

東岸 Tougan reference.

Hokayama 【外山】^{レベル6
About 30,000}  The Japanese surnames etymology dictionary.

Ehime-ken Matsuyama-shi . Ehime-ken Matsuyama-shi It is distributed in the overnight town. This island of Koshinojima facing the Seto Inland Sea.

※ Hiroshima-ken Hiroshima-shi Naka-ku Kamamachi was written as "Wakushu" in the Edo era to the clan of Hiroshima in the clan office. Wakasu is unknown whether it exists.