Cognomen Kannadasan (Kannadasan 
) , in the world, is a rare surname. The family name Kannadasan is characteristic of Singapore, where it is a rare surname, Malaysia, and Kuwait. Not in comparison with a country's population, it is the most numerous in India, Malaysia, and Singapore. More frequently, Kannadasan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kannadasan | Saudi Arabia, Malaysia, India, Singapore, United Arab Emirates |