Surname Bilso (Bilso 
) , throughout the world, is an extremely rare cognomen. The last name Bilso is characteristic of Latin America and the Caribbean, particularly Honduras, where it is a very rare surname, and Chile, where it is an extremely rare surname. Much more frequently, Bilso is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bilso | Philippines, Chile, Honduras, India, Venezuela |