Surname พาย (Pi 
, พาย 
, Oarb ) , across the world, is a widespread cognomen. The surname พาย is habitual in Myanmar, where it is quite a common surname, Malaysia, and India, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in India, China, and Myanmar. Likewise, พาย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pi | China, Malaysia, Venezuela, Myanmar, India |
| Oarb, พาย | Thailand |
| Paaye | Myanmar, India |
Khayuen, Oar, Oarm, Oarpan, Oarpin, Oarsee, Paay, Paeing, Phai, Pie, Pieak, Piean, Piebpien, Piee, Pieg, Piegbut, Piein, Piej, Piek, Piempaisal, Piene, Pieo, Pieper, Piepie, Piesong, Piewking, Piewping, Piews, Pieye, Piing, Pime, Piwr, Piyes, Ppien, Puricampie, Pyai, Pyaing, Pyam, Pye, Pyee, Pyeh, Pyej, Pyes, Pyie, Pying, Rowling, and Sugarpie