Family name Coonjah (Coonjah 
) , worldwide, is a very rare last name. The surname Coonjah is habitual in Mauritius, where it is quite a rare surname, Guyana, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname. In absolute terms, this name is the most popular in Mauritius, the United States, and Guyana.
| VARIANT | COUNTRY |
|---|---|
| Coonjah | United Kingdom, United States, Guyana, Mauritius |