Last name Rajá (Raha 
, Rajah 
, Rajá) , around the globe, is a common family name. The surname Rajá is habitual in Sri Lanka, where it is quite a common surname, Malaysia, and Qatar, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in India, Bangladesh, and Malaysia. Very seldom, Rajá is the forename as well as the last name.