Cognomen Winsko (Winsko 
) , around the world, is a very rare last name. The surname Winsko is habitual in the United States, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. More prevalently, Winsko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Winsko | United Kingdom, Poland, United States |