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