Swabia is a cultural, historic and linguistic region in southwestern Germany.
The name is ultimately derived from the medieval Duchy of Swabia, one of the German stem duchies, representing the territory of Alemannia, whose inhabitants interchangeably were called Alemanni or Suebi.
This territory would include all of the Alemannic German area, but the modern concept of Swabia is more restricted, due to the collapse of the duchy of Swabia in the thirteenth century. Swabia as understood in modern ethnography roughly coincides with the Swabian Circle of the Holy Roman Empire as it stood during the Early Modern period, now divided between the states of Bavaria and Baden-Württemberg.
Swabians (Schwaben, singular Schwabe) are the natives of Swabia and speakers of Swabian German. Their number was estimated at close to 0.8 million by SIL Ethnologue as of 2006, compared to a total population of 7.5 million in the regions of Tübingen, Stuttgart and Bavarian Swabia.
Like many cultural regions of Europe, Swabia's borders are not clearly defined. However, today it is normally thought of as comprising the former Swabian Circle, or equivalently the former state of Württemberg (with the Prussian Hohenzollern Province), or the modern districts of Tübingen (excluding the former Baden regions of the Bodenseekreis district), Stuttgart, and the administrative region of Bavarian Swabia.
In the Middle Ages, the term Swabia indicated a larger area, covering all the lands associated with the Frankish stem duchy of Alamannia stretching from the Vosges Mountains in the west to the broad Lech river in the east: This also included the region of Alsace and the later Margraviate of Baden on both sides of the Upper Rhine Valley, as well as modern German-speaking Switzerland, the Austrian state of Vorarlberg and the principality of Liechtenstein in the south.
Like all of Southern Germany, what is now Swabia was part of the La Tène culture, and as such has a Celtic (Gaulish) substrate. In the Roman era, it was part of the Raetia province.