Cognomen La Mas (La Mas 
) , globally, is an extremely rare surname. The surname La Mas is habitual in Colombia, where it is a very rare surname, and Spain, where it is an extremely rare surname. More prevalently, La Mas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| La Mas | Argentina, United States, Dominican Republic, Colombia, Spain |