Surname Ianchun (Янчун 
, Ianchun 
) , globally, is a very rare cognomen. The surname Ianchun is characteristic of Ukraine, where it is an extremely rare surname, China, and Russia. More frequently, Ianchun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Янчун | Russia, Ukraine |
| Ianchun | China, Cambodia |