Žitný ostrov 大日特尼岛
（重定向自Great Rye Island）
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. It is the biggest river island in Europe with an area of 1,886 km², being 84 km long and 15 to 30 km wide.