Cognomen Rosmain (Rosmain 
) , all around the world, is an extremely rare last name. The family name Rosmain is habitual in Latin America and the Caribbean, particularly Venezuela, where it is an extremely rare surname. Predominantly, Rosmain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosmain | Philippines, Democratic Republic of the Congo, Venezuela, United States |