Ada Huja (Cyrillic: Ада Хуја) is an urban neighborhood of Belgrade, the capital of Serbia. It is located in Belgrade's municipality of Palilula.
Ada Huja is a peninsula on the right bank of the Danube. It is bordered by the neighborhoods of Viline Vode and Deponija to the east and Bogoslovija and Karaburma to the south. It engulfs a bay of Rukavac (Cyrillic: Рукавац; Serbian for armlet) on the Danube, which separates its eastern half from the neighborhoods of Višnjica and Rospi Ćuprija to the south. The area is generally bordered by two traffic facilities: the Višnjička street to the south and the bridge of Pančevački most to the east.
Ada Huja was previously an island, as its name suggests (ada huja, Turkish/Serbian for rustle island). After the World War II the filling up of the Danube's bed between the bank of Belgrade and Ada Huja began, with garbage and dirt being the most used materials, turning it into a peninsula. The filled area covers the western part of Ada Huja while the former island now forms the eastern half, with a separate island-like extension on its eastern tip. Today, from the Pančevački most to the easternmost tip, Ada Huja is almost 4 km long and the entire area (filled and former island) covers 5 square kilometers.
Ada Huja is entirely industrial area. However, two Romani people slums (informal settlements, or locally classified as unhygienic settlements) developed on its eastern (Ada Huja) and western tip (Deponija).