Etymology and distribution of 外岡.

Tonooka 【外岡】^{レベル5
About 3,000}  The Japanese surnames etymology dictionary.

Kumamoto-ken , Fukuoka-ken , Saga-ken .

① Topography . From the field. There is an example meaning Haruhara (Hull). Kumamoto-ken Tamana-shi Tsurushi, Fukuoka-ken Kurume-shi Sasayama town was in the Edo period in the Kurume clan of the clan office. Miyazaki-ken Ebino-shi From the Harunomon gate of the gate division system in the Ashizuka in the Edo period.

② Korean type . There is a record of naturalization on November 26, 1954 at Miyagi-ken Kurihara-shi (formerly Kurihara gun Tsukiika cho). The real name is money. 金 Kon reference.

There was a case that Haruna 's surname was given in 761 (Tenpyo Treasure 5 years). Location unknown.

Sotooka 【外岡】^{レベル5
About 3,000}  The Japanese surnames etymology dictionary.

貫 Nuki reference.