Surname Koolsoom (Koolsoom 
) , around the world, is an extremely rare last name. The last name Koolsoom is habitual in Southern Asia, particularly India, where it is an extremely rare surname. More prevalently, Koolsoom is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koolsoom | South Africa, India |