Cognomen Muththamma (Muththamma 
) , in the entire world, is a rare family name. The last name Muththamma is characteristic of Southern Asia, particularly Sri Lanka, where it is quite a rare surname, and India, where it is an extremely rare surname. Very seldom, Muththamma is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Muththamma | India, Sri Lanka |