The Treaty of Karlowitz or Treaty of Karlovci was signed on January 26, 1699 in Sremski Karlovci (Serbian Cyrillic: Сремски Карловци, Croatian: Srijemski Karlovci, German: Karlowitz, Turkish: Karlofça, Hungarian: Karlóca), a town in modern-day Serbia, concluding the Austro-Ottoman War of 1683–1697 in which the Ottoman side had finally been defeated at the Battle of Senta.
Following a two-month congress between the Ottoman Empire on one side and the Holy League of 1684, a coalition of various European powers including the Habsburg Monarchy, the Polish-Lithuanian Commonwealth, the Republic of Venice and Muscovite Russia, a treaty was signed on January 26, 1699. The Ottomans ceded most of Hungary, Transylvania and Slavonia to Austria while Podolia returned to Poland. Most of Dalmatia passed to Venice, along with the Morea (the Peloponnesus peninsula), which the Ottomans regained in the Treaty of Passarowitz of 1718.
The Treaty of Karlowitz marked the beginning of the Ottoman decline in Eastern Europe, and made the Habsburg Monarchy the dominant power in Central Europe.