Cognomen Yen-Thi (Yen-Thi 
) , in the entire world, is an extremely rare surname. Much more frequently, Yen-Thi is the forename as well as the last name. Parts of the name also exists independently as a last name Yen, and a first name Thi.
| VARIANT | COUNTRY |
|---|---|
| Yen-Thi | Canada, United States |