The Kingdom of Lombardy-Venetia (Italian: Regno Lombardo-Veneto, in German: Lombardo-Venezianisches Königreich) was established after the defeat of Napoleon, according to the decisions of the Congress of Vienna (9 June 1815). The Kingdom was annexed to the Kingdom of Italy, in 1866.

The Congress of Vienna combined the territories of Lombardy (ruled by Austria in 1713-96) and Venetia (under Austrian rule since 1797) under the Austrian Habsburg dynasty. The Kingdom of Lombardy-Venetia was was held by Francis, who ruled from 1815 to 1835. Ferdinand ruled from 1835 to 1848.

After a popular revolutions on 22 March 1848 (The Five Days of Milan), the Austrians fleed from Milan, which become the capital city of the Governo Provvisorio della Lombardia (Lombardy Temporary Government). The next day, also Venice arose against the Austrians, forming the Governo Provvisorio di Venezia (Venice Temporary Government). The Austrians, after defeating the Sardinian troops in Custoza (24-25 July 1848), entered in Milan (6 August) and Venice (24 August 1849), restoring Austrian rule.

Francis Joseph ruled over the Kingdom until the annexation of Venetia to the Kingdom of Italy, in 1866 (Lombardy had already been annexed in 1859, after the Second Italian Independence War).

See also Historical states of Italy.