Cognomen Shamanthaka (Shamanthaka 
) , globally, is an extremely rare family name. The surname Shamanthaka is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Much more frequently, Shamanthaka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Shamanthaka | India |
Mani, Kalwa, Narri, Dasyam, Narasimhan, and Veerareddy