Family name Костищин (Костищин 
) , throughout the world, is an extremely rare cognomen. The family name Костищин is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname, and Ukraine. Also, Костищин is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Костищин | Ukraine, Russia |
Kostishchin, and Kostishin