Cognomen Булкан (Булкан 
) , around the globe, is an extremely rare family name. The surname Булкан is habitual in Central Asia, particularly Kyrgyzstan, where it is a very rare surname. More prevalently, Булкан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Булкан | Kyrgyzstan, Kazakhstan |