Cognomen Muthukumar (Muthukumar 
) , globally, is quite a common surname. The cognomen Muthukumar is habitual in Sri Lanka, where it is quite a rare surname, Singapore, and Oman. In absolute terms, it is the most numerous in India, Sri Lanka, and Malaysia. Also, Muthukumar is the forename as well as the last name.
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| Muthukumar | United Arab Emirates, Singapore, India, Sri Lanka, Malaysia |
| vettai muthukumar Indian actor (b. 1977) |
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| vamseedharan muthukumar researcher |
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| muthukumar santhanakrishnan researcher |
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| muthukumar elangovan researcher |
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| muthukumar g sankar researcher |
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| muthukumar chandrasekaran Ph.D. National University of Singapore 2019 |
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| muthukumar palanisamy researcher ORCID 0000-0002-0863-2964 |
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| muthukumar serva peddha researcher |
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| muthukumar palanisamy researcher (ORCID 0000-0003-1396-9948) |
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| thangamani muthukumar researcher |
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| kirthika muthukumar researcher |
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| murugappan muthukumar researcher |
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| muthukumar v bagavathiannan researcher |
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| v. muthukumar Indian politician, IN |
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| p muthukumar researcher |
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