Cognomen Чейко (Cheyko 
, Чейко 
) , all around the world, is a very rare last name. The surname Чейко is habitual in Russia, where it is a very rare surname, France, where it is an extremely rare surname, and Ukraine. Not in comparison with a country's population, this name is the most popular in Russia, France, and Mexico. Much less frequently, Чейко is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cheyko | Italy, Mexico, France |
| Чейко | Ukraine, Russia |