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 square kilometres (728 square miles), being 84 kilometres (52 miles) long and 15 to 30 kilometres (9.3 to 18.6 miles) wide.
Southern parts of Žitný ostrov by the Danube are protected by Dunajské luhy Protected Landscape Area.
The original name was of Slavic origin (1209 terra Chalow). Stanislav reconstructed the original name as *Čalov (like Czech Čálovice, Serbian Čalovići or Polish Nieczałów, Varsik as *Čelov (like Čelovce in Eastern Slovakia). The Hungarian name Csallóköz is derived from the original Slavic name, but the modern Slovak name is motivated only by phonetic similarity of German Schütt and Slovak žito (rye).
- http://www.televize.cz/clanky/dilo-dunaje-nejvetsi-ricni-ostrov-evropy-3420 (in Czech)
- Hladký, Juraj (2013). "Vlastné meno onymickom v regionálnom systéme" (PDF). Актуальні проблеми філології та перекладознавства (in Slovak): 298. ISSN 2415-7929.