Around the world, Kanstantin (Канстантин 
, Kanstantin 
) is a very rare principally male, but very infrequently feminine first name. The first name Kanstantin is characteristic of Kazakhstan, where it is a very rare boy's name, Russia, and India, where it is an extremely rare gender-neutral name. Much less frequently, Kanstantin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Канстантин | Kyrgyzstan, Kazakhstan, Armenia, Russia |
| Kanstantin | Russia, Belarus, United States, India, Greece |
C-Tin, Constantin, Constantine, Constantino, Kanstancin, Kanstantsin, Konstantin, Konstantinas, Konstantín, Kostyantyn, Канстанцін, Константин, Константино, Костен, Костя, Костянтин, קונסטנטין, قسطنطين, كونستانتين, and კონსტანტინე
Dzik, Badunov, Kaparykha, Labokha, Khmialnitski, Kuznetsov, and Kachanouski