Etymology and distribution of アロオ.

Aroo* 【アロオ】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Oosaka-fu Oosaka-shi , Fukuoka-ken · Aichi-ken .

① Korea type . Originated from the vicinity of Shuizu (aka Heihe) (Wae Ho) flowing in Gansu Province, People's Republic of China. Oosaka-fu Oosaka-shi There was a record of naturalization on March 4, 1970 in Ikeno-ku. There is also "Ikawa". The real name is Kang. 姜 Kyou reference.

② Aichi-ken Okazaki-shi Kango-cho was in the Edo period in the clan Okazaki of the clan office.