List of rulers of Austria

From 976 until 1246, the Margraviate of Austria and its successor, the Duchy of Austria, was ruled by the House of Babenberg. At that time, those states were part of the Holy Roman Empire. From 1246 until 1918, the duchy and its successor, the Archduchy of Austria, was ruled by the House of Habsburg. Following the defeat of Austria-Hungary in World War I, the titles were abolished or fell into abeyance with the erection of the modern Republic of Austria.

Margraves and Dukes of Austria under the House of Babenberg
The March of Austria, also known as Marcha Orientalis, was first formed in 976 out of the lands that had once been the March of Pannonia in Carolingian times. The oldest attestation dates back to 996, where the written name "ostarrichi" occurs in a document transferring land in present-day Austria to a Bavarian monastery. In 1156, the Privilegium Minus elevated the march to a duchy, independent of the Duchy of Bavaria.

Dukes and Archdukes of Austria under the House of Habsburg
Count Rudolf of Habsburg, elected as king of Germany (1273), was able during the years 1276–78 to decisively defeat his main rival, the Bohemian king Ottokar II, and to regain his Austrian domains back for the Empire. By his imperial authority, Rudolf later (1282) invested his sons Albrecht and Rudolf with the duchies of Austria and Styria, thereby securing them for the House of Habsburg. Austria remained under Habsburg rule for more than 600 years, forming the core of the Habsburg monarchy and the present-day country of Austria.

The most important Austrian rulers until the Victory at Vienna in 1683 are described in the book Symmetria iuridico Austriaca.