Family name Rîz (Rys 
, Rîz) , in all the world, is quite a common cognomen. The surname Rîz is characteristic of Czechia, where it is quite a common surname, Poland, where it is quite a rare surname, and Belgium. Not in comparison with a country's population, it most frequently occurs in Poland, Czechia, and the United States. Also, Rîz is the forename as well as the last name.