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