Surname Shastak (Shastak 
) , across the world, is a very rare last name. The family name Shastak is characteristic of Lithuania, where it is a rare surname, Belarus, and the United States, where it is an extremely rare surname. Very seldom, Shastak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Shastak | United States, Lithuania, Latvia, Belarus |