Surname Ranganathan (Ranganathan 
, Ранганатхан) , around the globe, is a common cognomen. The surname Ranganathan is habitual in U.S. Virgin Islands, where it is quite a common surname, Bahrain, and United Arab Emirates, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in India, the United States, and Malaysia. Also, Ranganathan is the forename as well as the last name.
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| Ranganathan | Malaysia, India, United Arab Emirates, United States, Sri Lanka |
| t. ranganathan Indian musician, IN (b. 1925) |
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romesh ranganathan British comedian, GB (b. 1978) |
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| subramania ranganathan Indian bioorganic chemist, IN (b. 1934) |
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| chingleput ranganathan musician, IN (b. 1938) |
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| ramesh ranganathan former Chief Justice of Uttarakhand High Court, IN (b. 1958) |
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| uma ranganathan (b. 1950) |
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| p. ranganathan Indian cricketer, IN (b. 1964) |
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| c. ranganathan Indian film director and screenwriter (b. 1966) |
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| thenmozhi ranganathan Indian businessperson (born 1970, child of Muthuvelar Karunanithi Muthu), IN (b. 1970) |
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| k. ranganathan botanist |
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| g. ranganathan researcher |
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| jaishree ranganathan Ph.D. University of North Carolina at Charlotte 2020 |
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| balu ranganathan researcher |
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| santhalakshmi ranganathan researcher |
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| revathi ranganathan researcher |
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