>
Family name Kostantin (Костантин
, Kostantin
) , throughout the world, is a rare cognomen. The family name Kostantin is habitual in North Macedonia, where it is quite a rare surname, Greece, and Armenia. Not in comparison with a country's population, it most frequently occurs in Greece, North Macedonia, and Egypt. More frequently, Kostantin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Костантин | Ukraine, Kazakhstan, Russia, Bulgaria, Poland |
| Kostantin | North Macedonia, Tanzania, Greece, Bulgaria, Reunion |