Surname Kortchak (Kortchak 
) , throughout the world, is a very rare cognomen. The cognomen Kortchak is characteristic of France, where it is a very rare surname, the United States, where it is an extremely rare surname, and Brazil. Much less frequently, Kortchak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kortchak | France, Brazil, United States |
| stephanie kortchak researcher ORCID ID = 0000-0002-6578-3195 |
|