Cognomen Mahadur (Mahadur 
) , throughout the world, is a rare surname. The cognomen Mahadur is habitual in South-eastern Asia, particularly Malaysia, where it is a rare surname, Indonesia, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, Malaysia, and India. Likewise, Mahadur is the forename as well as the last name.