Surname Густын (Gustyn 
, Густын 
) , across the world, is a rare last name. The family name Густын is characteristic of Poland, where it is a rare surname, Switzerland, and Canada, where it is a very rare surname. In absolute terms, it is commonest in Poland, Germany, and Russia. Also, Густын is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gustyn | Germany, Switzerland, United States, Poland, Canada |
| Густын | Russia |