Shirakawa (白河 or also written as 白川) is the name referring to the Shira-kawa River basin (Yodo-gawa River System) which was once included in Otagi County, Yamashiro Province, the Rakugai of Kyoto (outside of the capital Kyoto).
白河（しらかわ・白川）とは、かつて京都洛外、山城国愛宕郡に属していた白川(淀川水系)流域を指す名称。