Cognomen Annadhan (Annadhan 
) , in all the world, is a very rare last name. The last name Annadhan is characteristic of Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. More prevalently, Annadhan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Annadhan | Malaysia, India |