Surname Kolyadich (Kolyadich 
, Колядич 
) , globally, is quite a rare cognomen. The family name Kolyadich is habitual in Belarus, where it is quite a rare surname, Ukraine, and Kazakhstan, where it is a rare surname. Not in comparison with a country's population, it is commonest in Eastern Europe, particularly Ukraine, Belarus, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Kolyadich | Belarus, Canada, United States, Russia, Ukraine |
| Колядич | Belarus, Russia, Kazakhstan, Ukraine |