Cognomen Gurunathan (Gurunathan 
) , all around the world, is quite a rare family name. The last name Gurunathan is habitual in Malaysia, where it is quite a rare surname, United Arab Emirates, and Singapore. Not in comparison with a country's population, it most frequently occurs in India, Malaysia, and United Arab Emirates. Likewise, Gurunathan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Gurunathan | United Arab Emirates, Malaysia, India, United States, Sri Lanka |
| s. k. gurunathan Indian sports journalist (b. 1908) |
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| arun gurunathan researcher ORCID ID = 0000-0003-3332-7395 |
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| deepa gurunathan researcher ORCID ID = 0000-0002-6014-946X |
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| sothinathan gurunathan researcher |
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| s. gurunathan former Member of the Legislative Assembly, IN |
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| ramya gurunathan researcher |
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| sanjay gurunathan researcher |
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| usha gurunathan researcher |
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