Last name หยินหยิน (Yinyin 
, Yin Yin 
, หยินหยิน 
) , throughout the world, is quite a rare cognomen. The cognomen หยินหยิน is characteristic of Myanmar, where it is quite a rare surname, Malaysia, and Hong Kong, where it is a rare surname. In absolute terms, it most frequently occurs in Myanmar, Malaysia, and China. More prevalently, หยินหยิน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yinyin | Malaysia, China, Myanmar, Indonesia, Hong Kong |
| Yin Yin | Malaysia, Taiwan, China, Myanmar, Indonesia |
| หยินหยิน | Thailand |