Cognomen Rdan (رضان 
, ردان , Rdan 
) , worldwide, is a rare family name. The surname Rdan is characteristic of Palestinian Territory, where it is a rare surname, Myanmar, and Yemen, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Myanmar, India, and Yemen. More prevalently, Rdan is the forename as well as the last name.