Sfântu Gheorghe (Hungarian: Sepsiszentgyörgy, German: Sankt Georgen) is a city in central Romania. It is the capital of the county Covasna. It has 60.900 inhabitants (2004).
It has three main branches - the Sulina branch (the only one navigable by large ships) in the middle, the Chilia branch in the North (the border with Ukraine) and the Sfântu Gheorghe (Saint George) branch in the South.
In the Danube Delta and in the South, in the area between the Sfântu Gheorghe Channel and the Razelm Lake there are countless channels and small lakes the entire area being included in the UNESCO list of World Heritage Sites and Biosphere reserves.
The areas around Sfântu Gheorghe, Mahmudia, Crişan, Caraorman, Chilia.