Cognomen 廣津 (Hirotsu 
, 廣津, Hirotu 
) , throughout the world, is a rare family name. The last name 廣津 is habitual in Canada, where it is a very rare surname, the United States, and Brazil. In absolute terms, it is commonest in the United States, Indonesia, and Brazil. Likewise, 廣津 is the forename as well as the last name.