In all the world, Viswanadan (Viswanadan 
) is a very rare boy's first name. The first name Viswanadan is habitual in Southern Asia, particularly India, where it is an extremely rare masculine name. Very seldom, Viswanadan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Viswanadan | South Africa, India, Malaysia |
| viswanadan kalidas Malaysian cricket umpire (b. 1972) |
|