Cognomen พิระ (Phira 
, พิระ ) , all around the world, is a rare family name. The family name พิระ is characteristic of India, where it is a very rare surname, South Africa, and Cambodia. In absolute terms, it is the most numerous in India, South Africa, and Thailand. Also, พิระ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phira | Cambodia, United States, India, South Africa, Thailand |
| พิระ | Thailand |