Surname Hongiun (Хонгйун 
, Хонгюн , Hongiun 
) , throughout the world, is an extremely rare last name. The last name Hongiun is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname. Much more frequently, Hongiun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Хонгйун, Хонгюн | Russia |
| Hongiun | United States |