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, India, Democratic Republic of the Congo, Venezuela, Brazil |
| Ronzino | United States, France, Germany, Italy, Canada |
| Roncin | United States, Spain, France, Canada, Brazil |
| Hros | Slovakia, Germany, United States, Czechia, Venezuela |
| roman hros chess player (b. 1996) |
|