Across the world, Thathsara (Thathsara 
) is a rare boy's forename. The first name Thathsara is habitual in Southern Asia, particularly Sri Lanka, where it is quite a rare male name. Also, Thathsara is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Thathsara | Sri Lanka, United States |