Cognomen Jayawickramarajah (Jayawickramarajah 
) , throughout the world, is an extremely rare family name. The surname Jayawickramarajah is characteristic of Northern America, particularly the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jayawickramarajah | United States |
| janarthanan jayawickramarajah researcher (b. 1977) |
|
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| p t jayawickramarajah researcher |
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Angeni, Narendren, and Janarthanan