Cognomen Muthu Krishnan (Muthu Krishnan 
) , all over the world, is a rare last name. The surname Muthu Krishnan is habitual in Malaysia, where it is a rare surname, Singapore, where it is a very rare surname, and India, where it is an extremely rare surname. Also, Muthu Krishnan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Muthu Krishnan | Malaysia, United Kingdom, United States, Singapore, India |