Last name ล. ไพบูลย์ (ล. ไพบูลย์ 
, Lorpiboon , Lorpaiboon 
) , in all the world, is a rare family name. The last name ล. ไพบูลย์ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lorpiboon, ล. ไพบูลย์ | Thailand |
| Lorpaiboon | United States, Thailand |