Family name Hermain (Hermain 
) , worldwide, is a rare cognomen. The surname Hermain is habitual in France, where it is a rare surname, Honduras, where it is a very rare surname, and Indonesia. In absolute terms, it is commonest in Indonesia, France, and Mexico. Also, Hermain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hermain | Pakistan, Democratic Republic of the Congo, Mexico, France, Indonesia |