Žitný ostrov, also called Veľký Žitný ostrov (Great Rye Island) (German: Große Schüttinsel or Great Schütt Island, Hungarian: Csallóköz) to differentiate it from Malý Žitný ostrov (Small Rye Island) (German: Kleine Schüttinsel or Little Schütt Island, Hungarian: Szigetköz), is a river island in southwestern Slovakia, extending from Bratislava to Komárno. It lies between the Danube, its tributary Little Danube and Váh.The island is a major part of the Danubian Flat.