Cognomen Tĩn (Tĩn 
) , around the world, is a very rare surname. The last name Tĩn is characteristic of South-eastern Asia, particularly Vietnam, where it is a very rare surname. More prevalently, Tĩn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tĩn | Myanmar, Vietnam |