Family name Thathsarani (Thathsarani 
) , throughout the world, is quite a rare cognomen. The surname Thathsarani is habitual in Southern Asia, particularly Sri Lanka, where it is quite a rare surname. Very seldom, Thathsarani is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thathsarani | United Kingdom, Sri Lanka |