Cognomen Rajkoomar (Rajkoomar 
) , worldwide, is a rare surname. The family name Rajkoomar is habitual in Mauritius, where it is quite a common surname, South Africa, where it is a rare surname, and the United Kingdom, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Mauritius, South Africa, and India. Also, Rajkoomar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rajkoomar | Australia, South Africa, United Kingdom, India, Mauritius |