Cognomen Мертс (Merts 
, Мертс ) , in all the world, is a rare family name. The last name Мертс is habitual in Netherlands, where it is a rare surname, Estonia, and Georgia. In absolute terms, it is the most numerous in Russia, Netherlands, and the United States. Much less frequently, Мертс is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Merts | Russia, Netherlands, Poland, United States, South Africa |
| Мертс | Russia |