Family name Kalyus (Kalyus 
, Калюс 
, Калиус ) , all over the world, is a very rare cognomen. The surname Kalyus is characteristic of Ukraine, where it is a very rare surname, Russia, and Germany, where it is an extremely rare surname. Very seldom, Kalyus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalyus | Germany, India |
| Калюс | Russia, Ukraine |
| Калиус | Russia |