The Malacky District (Slovak: okres Malacky) is a district in the Bratislava Region of western Slovakia. It lies north from Bratislava on Záhorská nížina lowland. Its current borders have been established in 1996. The administrative seat is its largest town, Malacky. In the Malacky District the industrial park Eurovalley is located, on area of 1500ha with several thousand employees.