| Pronunciation | /ɾɑːʥəɾət̪nəm/ |
|---|---|
| Gender | Male |
| Language(s) | Tamil Kannada |
| Origin | |
| Meaning | Royal gem |
| Region of origin | Southern India North-eastern Sri Lanka |
| Other names | |
| Alternative spelling | Rajarathnam Rajarathinam |
Rajaratnam (Tamil: ராஜரத்தினம், romanized: Rājarattiṉam; Kannada: ರಾಜರತ್ನಂ) is a South Indian and Sri Lankan male given name. Due to the South Indian tradition of using patronymic surnames it may also be a surname for males and females.