Family name Biturajac (Biturajac 
) , around the world, is a very rare cognomen. The cognomen Biturajac is habitual in Croatia, where it is a rare surname, Canada, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Biturajac | Croatia, Canada, United States |