Surname Тван (Twan 
, Тван 
) , in the world, is quite a rare cognomen. The family name Тван is habitual in Myanmar, where it is quite a rare surname, Malaysia, and Canada, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in South-eastern Asia, particularly Myanmar, Malaysia, and Indonesia. Also, Тван is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Twan | Indonesia, Malaysia, United States, Myanmar, Netherlands |
| Тван | Kyrgyzstan, Kazakhstan, Russia, Ukraine |