Surname Кадян (Kadian 
, Кадян 
, Kadyan 
) , all around the world, is quite a rare cognomen. The last name Кадян is habitual in United Arab Emirates, where it is a rare surname, Jamaica, and Armenia. In absolute terms, it is commonest in India, the United States, and United Arab Emirates. Also, Кадян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kadian | Mali, United States, United Arab Emirates, India, Jamaica |
| Кадян | Kazakhstan, Ukraine, Russia, Armenia |
| Kadyan | United Kingdom, Australia, United States, United Arab Emirates, India |