Surname Thayanantharajah (Thayanantharajah 
) , all around the world, is an extremely rare last name. The last name Thayanantharajah is characteristic of Canada, where it is an extremely rare surname, and the United Kingdom. Likewise, Thayanantharajah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thayanantharajah | United Kingdom, Canada |