Family name Chaikouskaya (Chaikouskaya 
) , globally, is a very rare last name. The surname Chaikouskaya is habitual in Estonia, where it is a rare surname, Belarus, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chaikouskaya | United States, Estonia, Belarus |