Family name Ридна (Ridna 
, Ридна 
) , worldwide, is a very rare surname. The cognomen Ридна is characteristic of Indonesia, where it is a very rare surname, Nicaragua, and Ukraine, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, the United States, and Ukraine. More frequently, Ридна is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ridna | Brazil, Democratic Republic of the Congo, India, United States, Indonesia |
| Ридна | Russia, Ukraine |