Cognomen Gallaso (Gallaso 
) , around the world, is a very rare family name. The surname Gallaso is habitual in Philippines, where it is a very rare surname, Argentina, where it is an extremely rare surname, and Canada. In absolute terms, the name is most common in Philippines, Argentina, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Gallaso | Canada, Philippines, Brazil, United States, Argentina |