Cognomen Biljar (Billiard 
, Billard , Биляр 
) , all around the world, is a common last name. The surname Biljar is habitual in France, where it is quite a common surname, Canada, where it is quite a rare surname, and Switzerland. In absolute terms, the name is most common in France, Canada, and the United States. Very seldom, Biljar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Billard, Billiard | United Kingdom, Canada, Spain, France, United States |
| Биляр | Ukraine, Kyrgyzstan, Kazakhstan, Russia |
| Biljar | India |