Last name มะสุข (Masuk 
, มะสุข ) , in the world, is quite a common surname. The surname มะสุข is habitual in Western Asia, particularly Oman, where it is quite a rare surname, Qatar, and Bahrain. Not in comparison with a country's population, this name is the most popular in Bangladesh, India, and Thailand. More prevalently, มะสุข is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Masuk | Indonesia, India, Bangladesh, Thailand, Saudi Arabia |
| มะสุข | Thailand |