Family name Muththukumar (Muththukumar 
) , across the world, is an extremely rare cognomen. The surname Muththukumar is habitual in Southern Asia, particularly India, where it is an extremely rare surname. More frequently, Muththukumar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Muththukumar | United States, India |