Cognomen Neiby (Neiby 
) , in all the world, is a rare surname. The family name Neiby is habitual in Latin America and the Caribbean, particularly Honduras, where it is a rare surname, Venezuela, and Mexico, where it is a very rare surname. Also, Neiby is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Neiby | Mexico, Honduras, Venezuela, United States, Colombia |