Surname Uldanio (Uldanio 
) , all around the world, is an extremely rare family name. The family name Uldanio is characteristic of Latin America and the Caribbean, particularly Mexico, where it is an extremely rare surname. More prevalently, Uldanio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uldanio | Mexico, Philippines |