Cognomen ประคิ่น (Prakhin 
, ประคิ่น) , throughout the world, is a very rare surname. The family name ประคิ่น is habitual in Thailand, where it is a very rare surname, France, and Canada, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Thailand, the United States, and France. More prevalently, ประคิ่น is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Prakhin | United States, France, Thailand, India, Canada |