Family name Mahinthan (Mahinthan 
) , across the world, is a rare last name. The cognomen Mahinthan is characteristic of Sri Lanka, where it is quite a rare surname, the United Kingdom, where it is a very rare surname, and France. Likewise, Mahinthan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mahinthan | Australia, France, United Kingdom, India, Sri Lanka |