>
Surname Dumortier (Dumortier
) , throughout the world, is quite a common family name. The surname Dumortier is habitual in Western Europe, particularly Belgium, where it is quite a common surname, France, where it is quite a rare surname, and Switzerland, where it is a rare surname. In absolute terms, it is the most numerous in France, Belgium, and the United States. Much less frequently, Dumortier is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dumortier | Belgium, Switzerland, France, United States, Argentina |
Du Mortier, and Думортиер