Cognomen Халын (Halyn 
, Khalyn 
, Xalyn ) , all around the world, is a very rare family name. The surname Халын is habitual in Nicaragua, where it is a very rare surname, Honduras, and Russia. Not in comparison with a country's population, this name is the most popular in Russia, Canada, and Honduras. More prevalently, Халын is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Halyn | Philippines, Honduras, United States, Canada, Peru |
| Khalyn | Russia, United States, Philippines |
| Xalyn | United States |
| Халын | Russia |