Surname Vaidhyanathan (Vaidhyanathan 
) , globally, is a rare family name. The surname Vaidhyanathan is characteristic of Bahrain, where it is a rare surname, United Arab Emirates, and Singapore. In absolute terms, it is commonest in India, the United States, and United Arab Emirates. Also, Vaidhyanathan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vaidhyanathan | United Arab Emirates, United States, Bahrain, Singapore, India |
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siva vaidhyanathan American academic, US (b. 1966) |
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| savita vaidhyanathan politician (b. 1964) |
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| j. vaidhyanathan Indian Mridangam exponent (b. 1965) |
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| vaidhyanathan ramamurthy researcher |
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