Cognomen พงษ์สีดา (พงษ์สีดา 
, Pongsida , Phongsida 
) , around the world, is a rare last name. The surname พงษ์สีดา is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname, and Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| พงษ์สีดา, Pongsida | Thailand |
| Phongsida | Laos, Thailand |