Cognomen Franciasco (Franciasco 
) , in all the world, is a very rare family name. The cognomen Franciasco is habitual in Spain, where it is a very rare surname, Honduras, and Mexico, where it is an extremely rare surname. In absolute terms, it is the most numerous in Spain, Mexico, and Philippines. More frequently, Franciasco is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Franciasco | Philippines, Mexico, Spain, Brazil, Colombia |