Last name Karthikeyan (Karthikeyan 
) , around the globe, is a common surname. The surname Karthikeyan is habitual in Western Asia, particularly United Arab Emirates, where it is quite a common surname, Qatar, where it is quite a rare surname, and Oman. In absolute terms, the name is most common in India, United Arab Emirates, and Malaysia. More frequently, Karthikeyan is the forename as well as the last name.
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| Karthikeyan | United Arab Emirates, Malaysia, India, United States, Singapore |
| g. karthikeyan Indian politician, IN (b. 1925) |
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m. l. r. karthikeyan Indian singer, IN (b. 1982) |
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varshini karthikeyan Tamilnadu badminton player, IN |
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| c. v. karthikeyan (b. 1964) |
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| anu karthikeyan researcher (ORCID 0000-0002-6308-1974) |
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| kavya karthikeyan researcher |
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| aswathaman karthikeyan researcher |
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| anantha karthikeyan Ph.D. University of Southern California 2013 |
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| k. karthikeyan Singaporean politician |
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| navaratnasamy karthikeyan researcher |
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| sudhir karthikeyan researcher |
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| sandeep karthikeyan researcher |
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| sivakumar karthikeyan researcher |
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| arun s karthikeyan researcher |
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| sekar karthikeyan researcher |
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