Surname Greyz (เกรซ 
, Greyz 
, Грейз 
) , in the entire world, is a very rare family name. The last name Greyz is characteristic of Kazakhstan, where it is a very rare surname, Venezuela, and Russia, where it is an extremely rare surname. In absolute terms, it is the most numerous in Russia, the United States, and Thailand. More prevalently, Greyz is the forename as well as the last name.