Family name Fernandz (Fernandz 
) , in all the world, is a rare surname. The cognomen Fernandz is habitual in Sri Lanka, where it is quite a rare surname, Bolivia, where it is a rare surname, and the Dominican Republic. Measured by absolute frequency, it is the most numerous in Sri Lanka, Bolivia, and Spain. Likewise, Fernandz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fernandz | Democratic Republic of the Congo, Sri Lanka, Indonesia, Spain, Bolivia |