Last name Hros (Rocin 
, Ronzino 
, Roncin 
) , in all the world, is quite a rare cognomen. The cognomen Hros is habitual in Slovakia, where it is quite a rare surname, France, and Italy, where it is a rare surname. Very seldom, Hros is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rocin | Slovakia, Democratic Republic of the Congo, India, Brazil, Venezuela |
| Ronzino | Germany, Italy, United States, Canada, France |
| Roncin | Spain, United States, Canada, France, Brazil |
| Hros | Germany, Slovakia, Czechia, United States, Venezuela |
| roman hros chess player (b. 1996) |
|