Last name หมื่น (Muen 
, หมื่น) , all around the world, is a rare surname. The surname หมื่น is habitual in Malaysia, where it is a rare surname, Australia, where it is a very rare surname, and Indonesia. Not in comparison with a country's population, it is the most numerous in Malaysia, Indonesia, and India. Likewise, หมื่น is the forename as well as the last name.