In the entire world, Рю (Ryu 
, Rue 
, Zao 
, along with others...) is quite a common epicene first name. The given name Рю is habitual in Indonesia, where it is quite a rare mostly masculine, but infrequently girly name, Hong Kong, where it is quite a rare masculine name, and Cameroon, where it is a rare masculine name. Not in comparison with a country's population, this name is the most popular in Indonesia, China, and Japan. Likewise, Рю is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ryu | China, Indonesia, Taiwan, United States, France |
| Rue | Zimbabwe, China, Indonesia, United States, France |
| Zao | China, Indonesia, Myanmar, United States, France |
| Рю | Kyrgyzstan, Kazakhstan, Russia, Ukraine |
Рю is also a popular name for the fictitious and mythical characters: Ryu , the Street Fighter character, Wreck-It Ralph; Ryu Hayabusa , the fictional character from Ninja Gaiden and Dead or Alive, Dead or Alive 5 Last Round; Rue , the fictional character, The Hunger Games; Ryū Lion , the fictional character from Is It Wrong to Try to Pick Up Girls in a Dungeon? and Ryu Jose , the fictional character from Mobile Suit Gundam, and in many other works.