Cognomen Calmin (Calmin 
) , globally, is a very rare last name. The last name Calmin is habitual in France, where it is a rare surname, Venezuela, where it is an extremely rare surname, and Brazil. Not in comparison with a country's population, it is the most numerous in France, Brazil, and India. Likewise, Calmin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Calmin | France, Brazil, India, South Africa, Philippines |