Last name Koulani (Koulani 
) , in the entire world, is a rare cognomen. The surname Koulani is habitual in Afghanistan, where it is a rare surname, Greece, where it is a very rare surname, and Morocco. Not in comparison with a country's population, it is the most numerous in Afghanistan, Iran, and Morocco. Much less frequently, Koulani is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koulani | Iran, India, Greece, Afghanistan, Morocco |