Kawaguchi 【川口】6 The Japanese surnames etymology dictionary.
② Korean type . Terrain . Add "rice" to yellow. There is a record of naturalization on Toukyou-to Bunkyou-ku on January 28, 1965. There is also "Hirota". The real name is yellow. 黄 reference. 廣田 reference.
※ Hiroshima-ken Mihara-shi In Honcho 1716 to 1736 (Kyoho year) in the name of Mitoza shop in 1854 to 1860 (Ansei annual) in the name after referring to "King" Huang Huangda I told that it was. Old on pronunciation is Oda. 王田 reference.