Family name Уна (Una 
, Oona 
, Уна 
) , in the world, is a common surname. The surname Уна is characteristic of Paraguay, where it is quite a rare surname, Tunisia, and Iceland. In absolute terms, this name is the most popular in India, Indonesia, and Nigeria. More prevalently, Уна is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Una | United Kingdom, Indonesia, Serbia, United States, India |
| Oona | United Kingdom, South Africa, United States, Ireland, India |
| Уна | Serbia, Kazakhstan, Ukraine, Russia |
| Ouna | Kenya, South Africa, Nigeria, United States, India |