Surname ريانا (Riana 
, Rhianna 
, Ryana ) , around the world, is a common last name. The cognomen ريانا is characteristic of South-eastern Asia, particularly Indonesia, where it is quite a common surname, Brunei, where it is quite a rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in Indonesia, Malaysia, and Madagascar. Also, ريانا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riana | Indonesia, Madagascar, South Africa, United States, Democratic Republic of the Congo |
| Rhianna | Brazil, Australia, United Kingdom, South Africa, United States |
| Ryana | Brazil, Indonesia, South Africa, United States, Democratic Republic of the Congo |
| ريانا | Sudan, Saudi Arabia, Syria, Iraq, Egypt |