| Native Name: | Herrschaft (Freiherrschaft) Königsegg |
| Conventional Long Name: | Lordship (Barony) of Königsegg |
| Common Name: | Konigsegg |
| Era: | Middle Ages Early modern period |
| Status: | Lordship |
| Empire: | Holy Roman Empire |
| Year Start: | 1192 |
| Year End: | 1622 |
| Event Start: | Lordship |
| Event1: | Raised to barony |
| Date Event1: | 1470 |
| Event2: | Partitioned to create Aulendorf and Rothenfels |
| Date Event2: | 1622 |
| Event3: | Raised to imperial estate |
| Date Event3: | 1629 |
| Event4: | Inherited by Aulendorf |
| Date Event4: | 1663 |
| Event End: | Rothenfels sold to Austria |
| Date End: | 1804 |
| Event Post: | Mediatised to Württemberg |
| Date Post: | 1806 |
| P1: | Duchy of Swabia |
| S1: | Kingdom of Württemberg |
| Flag S1: | Flagge Königreich Württemberg.svg |
| Capital: | Aulendorf |
Königsegg was a state in the southeastern part of what is now Baden-Württemberg, Germany. It emerged in 1192 as a lordship and was raised to a barony in 1470. It was partitioned in 1622 between itself, Königsegg-Aulendorf and Königsegg-Rothenfels.
In 1629, Königsegg was raised to an imperial estate and became a member of the College of the Counts of Swabia at the Reichstag. With the extinction of its male line in 1663, it was inherited by Königsegg-Aulendorf.
In 1804, Königsegg sold Rothenfels to Austria. In 1806, the Rheinbundakte mediatised Königsegg to the Kingdom of Württemberg. Today, the Counts of Königsegg still reside at Königseggwald Castle in Swabia and at Halbturn Castle in Austria.
Königsegg was named after Königsegg Castle, which was located in Königsegg, today part of Guggenhausen. As of 1806, it consisted of two isolated parts, one around Königsegg and one around Aulendorf.
The state had no cities; its capital was Aulendorf. It was bordered by the County of Scheer, the Mainau Commandry of the Teutonic Order, the Abbacy of Weingarten, the Principality of Fürstenberg, the Abbacy of Schussenried, the County of Waldburg and Austria.
In 1806, Königsegg had an area of about 160km2 and a population of about 3000.