Across the world, Kalayanam (Kalayanam 
) is a very rare epicene forename. The first name Kalayanam is habitual in Southern Asia, particularly India, where it is an extremely rare epicene name. Likewise, Kalayanam is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kalayanam | Thailand, India |