Family name Янчанка (Янчанка 
, Yanchanka 
) , in the entire world, is a very rare cognomen. The surname Янчанка is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Янчанка | Russia |
| Yanchanka | United States, Belarus |
| мікола янчанка BY (b. 1931) |
|