Cognomen Musaib (Musaib 
, Мусаиб 
) , globally, is a rare surname. The family name Musaib is characteristic of Bangladesh, where it is a rare surname, Saudi Arabia, and Georgia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Bangladesh, India, and Saudi Arabia. More prevalently, Musaib is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Musaib | United Arab Emirates, India, Bangladesh, Pakistan, Saudi Arabia |
| Мусаиб | Belarus, Kazakhstan, Russia |