Family name Larrus (Larrus 
) , in all the world, is a very rare last name. The surname Larrus is habitual in Argentina, where it is a very rare surname, France, and Canada, where it is an extremely rare surname. In absolute terms, it is the most numerous in Argentina, the United States, and France. Much less frequently, Larrus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Larrus | Canada, France, Argentina, United States, Mexico |