Sumay-ye Beradust District (Persian: بخش صومای برادوست‎; also Romanized as Sumay Baradust and Somay Baradoost; in Kurdish: Somay Brados) is a district (bakhsh) in Urmia County, West Azerbaijan Province, Iran. It is west of Lake Urmia, between the city of Urmia and the border with Turkey. Its administrative seat is the town of Serow. At the 2006 census, its population was 39,802, in 6,760 families. The District has one city: Serow.