Surname ลั่ว (Lua 
, Luok 
, ลั่ว) , around the world, is a common family name. The family name ลั่ว is habitual in Singapore, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Mexico. Not in comparison with a country's population, it is commonest in Mexico, Malaysia, and the United States. Also, ลั่ว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lua | Brazil, United States, Mexico, Malaysia, Philippines |
| Luok | Spain, Sudan, United States, Malaysia |