Dunajská Streda District (Slovak: Okres Dunajská Streda, Hungarian: Dunaszerdahelyi járás) is a district in the Trnava Region of western Slovakia. Until 1918, the district was mostly part of the Hungarian county of Pressburg, apart from a small area in the south, which formed part of the county of Komárno, and Baloň, which formed part of the county of Györ. Majority of inhabitants of Dunajská Streda District are ethnic Hungarians.