Surname Visvanathan (Visvanathan 
, விசுவநாதன்) , in the world, is quite a rare family name. The surname Visvanathan is characteristic of Malaysia, where it is quite a rare surname, Sri Lanka, and Sweden. Not in comparison with a country's population, this name is the most popular in Malaysia, Sri Lanka, and India. Also, Visvanathan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Visvanathan | South Africa, Sweden, India, Sri Lanka, Malaysia |
| c. n. visvanathan Indian politician, IN (b. 1947) |
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| susan visvanathan Sociologist and Fiction Writer, IN (b. 1957) |
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| sudha visvanathan researcher (ORCID 0000-0002-1170-9272) |
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| p. visvanathan Ph.D. Madurai Kamaraj University 2008 |
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| renuka visvanathan researcher |
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| akila visvanathan researcher |
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| shiv visvanathan Indian scientist |
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| rayshan visvanathan researcher |
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| rizliya visvanathan researcher |
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| rangaraju visvanathan researcher (ORCID 0000-0001-5560-0503) |
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| renuka visvanathan |
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| meera visvanathan |
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