Across the world, ユン (Yun 
, Yoon , Yuen ) is a common gender-neutral forename. The first name ユン is characteristic of Hong Kong, where it is quite a common epicene name, Macao, and Brunei. Not in comparison with a country's population, it is commonest in China, the United States, and Hong Kong. Likewise, ユン is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Yuen, Yoon, Yun | Myanmar, Hong Kong, United States, Malaysia, China |
| ユン | Japan |
Doãn, Džons, Erwann, Evan, Gian, Gianni, Giannis, Giovan, Giovanni, Giuàn, Hannes, Hanns, Hans, Honsa, Honza, Huans, Ian, Ianka, Ieuan, Ifan, Ioan, Ioann, Ioannes, Ioannis, Ion, Ivan, Ivano, Ivans, Ivashka, Ivo, Iván, Iwan, Iwo, Jaan, Jack, Jan, Janka, Janos, Jean, Jehan, Jhoao, Jin, Joan, Joannes, Joao, Jogvan, Johan, Johann, Johannes, Johannès,
ユン is also a prevalent name for the fictitious and mythical characters: Jon Snow , the character in A Song of Ice and Fire, Game of Thrones; Doctor Manhattan , the Watchmen character; Booster Gold , the fictional character, Batman: The Brave and the Bold; Jon Kent , the son of Superman, Convergence and Yun Iijima , the character in New Game!, and in many other works.