Surname มูลใส (Munsai 
, มูลใส ) , around the globe, is a very rare family name. The family name มูลใส is habitual in Thailand, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and India. More prevalently, มูลใส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Munsai | Thailand, India, Malaysia |
| มูลใส | Thailand |