Surname Ючун (Iuchun 
, Ючун 
) , around the world, is a very rare cognomen. The cognomen Ючун is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, Ючун is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iuchun | China |
| Ючун | Russia |