Family name Choyin (Choyin 
) , in the world, is a rare cognomen. The surname Choyin is habitual in Myanmar, where it is a very rare surname, Indonesia, and China, where it is an extremely rare surname. Very seldom, Choyin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Choyin | Thailand, China, Myanmar, United States, Indonesia |