Surname ปัญหา (Panha 
, Probho , ปัญหา ) , throughout the world, is quite a rare cognomen. The surname ปัญหา is characteristic of South-eastern Asia, particularly Cambodia, where it is quite a rare surname, Thailand, where it is a rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in Thailand, Pakistan, and Cambodia. Likewise, ปัญหา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Panha | Thailand, Pakistan, India, Cambodia, Malaysia |
| Probho | Thailand, India |
| ปัญหา | Thailand |
| Prob | Myanmar, United States, India, Indonesia, Malaysia |