Family name 衣川 (Kinugawa 
, 衣川 , Kinukawa 
) , around the globe, is a rare cognomen. The family name 衣川 is habitual in Singapore, where it is a rare surname, Russia, and Brazil, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Russia, Brazil, and the United States. Very seldom, 衣川 is the forename as well as the last name.