Family name Krousko (Krousko 
, Круско 
) , around the globe, is a very rare cognomen. The cognomen Krousko is habitual in Russia, where it is a very rare surname, Ukraine, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Krousko | United States |
| Круско | Russia, Ukraine |