Family name Ruiana (Ruiana 
) , in all the world, is an extremely rare cognomen. The last name Ruiana is habitual in Georgia, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Much more frequently, Ruiana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruiana | Brazil, Philippines, Georgia, India, Indonesia |