Surname Thart (Thart 
, Tart 
) , globally, is quite a rare family name. The surname Thart is characteristic of Estonia, where it is quite a rare surname, Malaysia, and the United States, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Malaysia, and Myanmar. Very seldom, Thart is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thart | United Kingdom, United States, Malaysia, Myanmar, Germany |
| Tart | United Kingdom, Myanmar, United States, Malaysia, Turkey |