Cognomen ลั้ว (Lua 
, ลั้ว) , in the entire world, is a common family name. The surname ลั้ว 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 the most numerous in Mexico, Malaysia, and the United States. Also, ลั้ว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lua | Malaysia, Mexico, Philippines, Brazil, United States |