Surname มั่นคงดี (Stable 
, มั่นคงดี, Moongdee 
) , all over the world, is quite a rare family name. The surname มั่นคงดี is characteristic of Cuba, where it is quite a rare surname, Uruguay, and United Arab Emirates, where it is a rare surname. In absolute terms, it is the most numerous in Cuba, Myanmar, and France. Also, มั่นคงดี is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stable | Cuba, France, United States, Myanmar, Argentina |
| Moongdee | United States, Thailand |
| Munkongdee | Thailand |