Throughout the world, ปัญหา (Panha 
, Probho , ปัญหา ) is a rare epicene forename. The first name ปัญหา is habitual in Cambodia, where it is a rare mostly boy's, but uncommonly feminine name, Thailand, where it is a very rare epicene name, and France. Measured by absolute frequency, it most frequently occurs in India, Thailand, and Cambodia. Also, ปัญหา is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Panha | India, Cambodia, Pakistan, Malaysia, Thailand |
| Probho | India, Thailand |
| ปัญหา | Thailand |
| Prob | Indonesia, Myanmar, India, Malaysia, United States |