Surname Kalayanam (Kalayanam 
) , across the world, is a rare cognomen. The family name Kalayanam is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Kalayanam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kalayanam | Thailand, India |