Last name Kregul (Kregul 
, Крегул 
) , all over the world, is a rare cognomen. The cognomen Kregul is habitual in Ukraine, where it is quite a rare surname, Czechia, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Ukraine, Russia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Kregul | Czechia, United States, Germany |
| Крегул | Russia, Ukraine, Kazakhstan |