Surname Bileisis (Bileisis 
) , around the world, is a very rare cognomen. The surname Bileisis is habitual in Lithuania, where it is quite a rare surname, Argentina, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Bileisis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bileisis | United States, United Kingdom, Lithuania, Dominican Republic, Argentina |