Surname Annathan (Annathan 
) , globally, is a very rare cognomen. The last name Annathan is habitual in Malaysia, where it is a rare surname, South Africa, where it is a very rare surname, and India, where it is an extremely rare surname. More prevalently, Annathan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Annathan | India, Malaysia, Democratic Republic of the Congo, South Africa |
Sambou, Sinivesan, and Thiagarajoo