Cognomen Kotljarova (Котлярова 
, Kotljarova 
) , around the globe, is a common last name. The family name Kotljarova is habitual in Eastern Europe, particularly Ukraine, where it is quite a rare surname, Russia, and Belarus. Measured by absolute frequency, it is commonest in Russia, Ukraine, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Котлярова | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |
| Kotljarova | Belarus, Estonia, Germany |