Family name ล่องแพ (Raffety 
, ล่องแพ, Longpae 
) , throughout the world, is a rare cognomen. The surname ล่องแพ is habitual in Israel, where it is a rare surname, the United States, and the United Kingdom. Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Raffety | Australia, Israel, Canada, United States, United Kingdom |
| Longphae, Longpae | Thailand |