Family name Кольчанов (Кольчанов 
) , in all the world, is an extremely rare last name. The surname Кольчанов is habitual in Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Кольчанов | Kazakhstan, Russia |
Kolchanov, and Koltchanov