Josef Georg Hörl (22 August 1722 – 9 December 1806) was an Austrian lawyer,[1] serving as mayor of Vienna from 1773 to 1804.

In September 1791 the Theater auf der Wieden saw the premiere of Wolfgang Amadeus Mozart's opera The Magic Flute.

Rat (Imperial Advisor) and invited him to participate in his Magistratsreform, which was introduced in 1783 and remained in force until 1850.

During this period the municipal administration of Vienna, the Magistrat (with 42 Magistratsräte), was divided into three independent 'Senates', with the mayor as the overall executive leader.

With this reform Joseph II in effect incorporated the municipal administration into the centralised system of an absolutist state, thereby successfully preventing the citizens of Vienna from attaining political independence.