Surname Колдан (Колдан 
) , throughout the world, is a very rare family name. The cognomen Колдан is habitual in Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Likewise, Колдан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Колдан | Kazakhstan, Russia, Ukraine |