Cognomen Tchernoousko (Tchernoousko 
, Черноусько 
) , in all the world, is a rare last name. The last name Tchernoousko is habitual in Russia, where it is a rare surname, Ukraine, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tchernoousko | United States |
| Черноусько | Ukraine, Russia |