Family name Demelier (Demelier 
) , around the globe, is a very rare surname. The last name Demelier is characteristic of Switzerland, where it is a rare surname, France, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in France, Switzerland, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Demelier | Switzerland, United States, Argentina, Canada, France |