Last name Muthusamy (Muthusamy 
) , across the world, is a common cognomen. The family name Muthusamy is habitual in South-eastern Asia, particularly Malaysia, where it is quite a common surname, Brunei, where it is quite a rare surname, and Singapore. In absolute terms, the name is most common in Malaysia, India, and Sri Lanka. Very seldom, Muthusamy is the forename as well as the last name.
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| Muthusamy | United Arab Emirates, Indonesia, Sri Lanka, Malaysia, India |
| sengodagounder muthusamy Indian businessperson (born 1939, child of Vellayagounder Sengodagounder), IN (b. 1939) |
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| muthusamy lakshmanan Indian theoretical physicist (born 1946), IN (b. 1946) |
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| muthusamy thiruppathi researcher |
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| muthusamy eswaramoorthy researcher |
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| muthusamy thangaraju researcher (ORCID 0000-0003-4202-1638) |
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| arunbalaji muthusamy researcher |
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| muthusamy vanninathan Ph.D. Université Pierre-et-Marie-Curie - Paris VI |
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| senthilkumar k muthusamy researcher ORCID ID = 0000-0003-2463-457X |
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| saravanakumar muthusamy researcher (ORCID 0000-0002-3872-8158) |
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| kirithika muthusamy researcher (ORCID 0000-0001-6009-0923) |
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| venkatraj muthusamy researcher |
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| muthusamy kalaivani researcher (ORCID 0000-0002-5545-1648) |
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| muthusamy govarthanan researcher |
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| muthusamy poomalai pachamuthu researcher |
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| karuppaiya muthusamy alaysian politician |
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