Cognomen Болдун (Болдун 
) , in all the world, is a very rare family name. The cognomen Болдун is habitual in Eastern Europe, particularly Ukraine, where it is a very rare surname. Very seldom, Болдун is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Болдун | Kazakhstan, Ukraine |
| болдун, иван корнеевич UA (b. 1918) |
|