Family name มะลัย (Malai 
, มะลัย ) , in the world, is a common last name. The surname มะลัย is habitual in Moldova, where it is quite a common surname, Cyprus, where it is quite a rare surname, and Brunei. Measured by absolute frequency, it is commonest in Thailand, India, and Moldova. Also, มะลัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Malai | Romania, Moldova, Thailand, India, Malaysia |
| มะลัย | Thailand |