Family name Numbay (Numbay 
) , globally, is a rare surname. The last name Numbay is characteristic of Latin America and the Caribbean, particularly Paraguay, where it is quite a rare surname, and Argentina, where it is an extremely rare surname. Likewise, Numbay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Numbay | United Kingdom, Argentina, Paraguay, Philippines |