Etymology and distribution of 苽生.

Uryuu 【苽生】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

大木場 Ookoba reference.

Uriu 【苽生】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Fukushima-ken , Saitama-ken , Gunma-ken .

① variant of 大河原 . Fukushima-ken Futaba-gun Ookuma-machi Okawara (Ogawara) was a place name with a record since the Edo period.

② Kagoshima-ken Soo-shi Originated from Okawara (Ookawa Harara), a small figure of Shimotsuji Town.

③ Kagoshima-ken Soo-shi Originated from Okawara Okawara (Ookawara) in Otani Otami cho.

④ Ainu system . Hokkaidou Iburishi-chou Mukawa-chou is the origin.