Last name Montelus (Montelus 
) , around the world, is a very rare cognomen. The cognomen Montelus is habitual in France, where it is a very rare surname, the United States, where it is an extremely rare surname, and Canada. In absolute terms, this name is the most popular in the United States, France, and Brazil. Very seldom, Montelus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Montelus | Canada, France, Brazil, United States |