Last name Thevadasan (Thevadasan 
) , around the globe, is a very rare cognomen. The surname Thevadasan is habitual in Singapore, where it is a very rare surname, South Africa, and Malaysia. Very seldom, Thevadasan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thevadasan | South Africa, Malaysia, Australia, Singapore, India |
Sarah, Britt, Nolan, Thinesh, Henrina, Henrina Mary, and Thangarajah