Cognomen Hoshiya (星谷 
, Hoshiya 
) , all around the world, is a very rare surname. The family name Hoshiya is characteristic of Israel, where it is a very rare surname, Australia, and Brazil, where it is an extremely rare surname. In absolute terms, the name is most common in China, Brazil, and Australia. More frequently, Hoshiya is the forename as well as the last name.