Cognomen Хадун (Hadun 
, Khadun 
, Хадун 
) , across the world, is quite a rare last name. The family name Хадун is habitual in Mauritius, where it is quite a common surname, Croatia, where it is a rare surname, and Malaysia. Not in comparison with a country's population, the name is most common in Indonesia, Mauritius, and India. Very seldom, Хадун is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hadun | India, Indonesia, Malaysia, Turkey, Croatia |
| Khadun | Thailand, United Kingdom, India, China, Mauritius |
| Хадун | Russia, Ukraine |