Surname Жані-Костянтин (Жані-Костянтин 
) , around the globe, is an extremely rare last name. Much more frequently, Жані-Костянтин is the forename as well as the last name. Parts of the name also exists independently as a first name Костянтин.
| VARIANT | COUNTRY |
|---|---|
| Жані-Костянтин | Ukraine |