Worldwide, เปย (Poei 
, เปย ) is a rare epicene first name. The forename เปย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare unisex name, and Indonesia. Likewise, เปย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Poei | Indonesia, Malaysia, Thailand, United States, Myanmar |
| เปย | Thailand |