Östergötland (; English exonym: East Gothland) is one of the traditional provinces of Sweden (landskap in Swedish) in the south of Sweden. It borders Småland, Västergötland, Närke, Södermanland and the Baltic Sea. In older English literature, one might also encounter the Latinized version, Ostrogothia. The corresponding administrative county, Östergötland County, covers the entire province and parts of neighbouring provinces.