Surname Amirtharajah (Amirtharajah 
) , around the world, is a very rare cognomen. The surname Amirtharajah is habitual in Australia, where it is a very rare surname, Germany, where it is an extremely rare surname, and the United Kingdom. Not in comparison with a country's population, this name is the most popular in Australia, the United States, and Germany. Very seldom, Amirtharajah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amirtharajah | Germany, United Kingdom, Australia, United States, Canada |
| rajeevan amirtharajah Amreican Electrical and Computer Engineer, academic |
|