Orang Ulu (which means "people of the interior) is an ethnic designation politically coined to group together roughly 27 very small but ethnically diverse tribal groups in northeastern Sarawak, Malaysia with populations ranging from less than 300 persons to over 25,000 persons. Orang Ulu is not a legal term and no such racial group exist or listed in the Malaysian Constitution. The term was popularised by a minority association known as "Orang Ulu National Association" (OUNA) that was formed in 1969.