Cognomen Irelba (Irelba 
) , around the world, is a very rare family name. The cognomen Irelba is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname, Venezuela, and Argentina, where it is an extremely rare surname. More prevalently, Irelba is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Irelba | Chile, United States, Argentina, Venezuela |