Stuttgart (German pronunciation: [ˈʃtʊtɡaɐ̯t]) is the capital of the state of Baden-Württemberg in southern Germany. The sixth-largest city in Germany, Stuttgart has a population of 600,038 (December 2008) while the metropolitan area has a population of 5.3 million (2008).

The city lies at the centre of a densely populated area, surrounded by a ring of smaller towns. This area called Stuttgart Region has a population of 2.7 million. Stuttgart's urban area has a population of roughly 1.8 million, making it Germany's seventh largest. With over 5 million inhabitants, the greater Stuttgart Metropolitan Region is the fourth-biggest in Germany after the Rhine-Ruhr area, Berlin/Brandenburg and Frankfurt/Rhine-Main.

Stuttgart is spread across a variety of hills (some of them vineyards), valleys and parks – unusual for a German city and often a source of surprise to visitors who primarily associate the city with its industrial reputation as the 'cradle of the automobile'.

Stuttgart has the status of Stadtkreis, a type of self-administrating urban county. It is also the seat of the state legislature, the regional parliament, local council and the Protestant State Church in Württemberg as well as one of the two co-seats of the bishop of the Roman Catholic Diocese of Rottenburg-Stuttgart.