Last name Thushyanthan (Thushyanthan 
) , in the world, is a rare family name. The surname Thushyanthan is habitual in Sri Lanka, where it is quite a rare surname, Australia, where it is a very rare surname, and France. In absolute terms, it is the most numerous in Sri Lanka, France, and the United Kingdom. Also, Thushyanthan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thushyanthan | Sri Lanka, United Kingdom, Australia, France, United States |