Family name Piyakasem (Piyakasem 
) , throughout the world, is an extremely rare cognomen. The family name Piyakasem is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, Piyakasem is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piyakasem | Thailand |