Across the world, Muội (Muội 
) is a rare mostly feminine, but seldom boy's given name. The first name Muội is habitual in South-eastern Asia, particularly Vietnam, where it is a rare dominantly girly, but infrequently boy's name. More prevalently, Muội is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Muội | Vietnam |