Throughout the world, Thooyavan (Thooyavan 
) is a very rare boy's forename. The forename Thooyavan is habitual in Southern Asia, particularly India, where it is an extremely rare masculine name. Very seldom, Thooyavan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Thooyavan | India |
Kannan, Maruthan, Arumugam, Krishnan, Manoharan, Mathivannan, and Santhirathas