Cognomen Kumudham (Kumudham 
) , in all the world, is an extremely rare last name. Much more frequently, Kumudham is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kumudham | India, United States, Malaysia |
Sinappan, Sowdhani, Sinnappan, Rajendran, and Balasubramanian