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. The District has three rural districts (dehestan): Beradust Rural District, Sumay-ye Jonubi Rural District, and Sumay-ye Shomali Rural District.
Sumay-ye Beradust District is bordered on the south by Silvaneh District, on the west by Turkey, on the north by Salmas County, with Anzal District and Nazlu District on the east.
Coordinates: 37°50′00″N 44°40′00″E / 37.83333°N 44.66667°E