Last name Muwais (Muwais 
) , throughout the world, is a very rare surname. The surname Muwais is habitual in Jordan, where it is a rare surname, Saudi Arabia, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Saudi Arabia, Jordan, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Muwais | Saudi Arabia, Jordan, United States, Canada |