| Conflict: | Battle of Kunovica |
| Partof: | Crusade of Varna |
| Date: | 2 or 5 January 1444 |
| Place: | Kunovica, between Niš and Pirot, Ottoman Empire (modern-day Serbia) |
| Result: | Christian victory |
| Combatant1: | Kingdom of Hungary Kingdom of Poland Despotate of Serbia Wallachia |
| Combatant2: | Ottoman Empire |
| Commander1: | Władysław III of Poland John Hunyadi Đurađ Branković |
| Commander2: | Mahmud Çelebi |
The Battle of Kunovica or Battle at Kunovitsa was fought between crusaders led by John Hunyadi and the armies of the Ottoman Empire on 2 or 5 January 1444, near the mountain Kunovica (Suva Planina) between Pirot and Niš, in present-day Serbia. It was part of the larger Crusade of Varna.
The Christian contingent began their retreat on 24 December 1443, after the Battle of Zlatica. The Ottoman forces followed them across the rivers Iskar and Nišava and in the Kunorica pass attacked (some sources say ambushed by) the rear flanks of the retreating armies composed of armies of the Serbian Despotate under command of Đurađ Branković. The battle took place during the night, under the full moon. Hunyadi and Władysław who were already through the pass left their supplies guarded by infantry and attacked Ottoman forces near the river on the eastern side of the mountain. The Ottomans were defeated and many Ottoman commanders, including Mahmud Çelebi of Çandarlı family (in some earlier sources referred to as Karambeg),[1] were captured.
The Ottoman defeat in the Battle of Kunovica and capture of Mahmud Bey, the Sultan's son-in-law, created the impression of an overall victorious campaign. According to some sources, Skanderbeg participated in this battle on the Ottoman side and deserted Ottoman forces during the conflict.
Four days after this battle the Christian coalition reached Prokuplje. Đurađ Branković proposed to Władysław III of Poland and John Hunyadi to stay in Serbian fortified towns during the winter and continue their campaign against the Ottomans in the spring of 1444. They rejected his proposal and retreated. By the end of January 1444 forces of Władysław and Hunyadi reached Belgrade and in February they arrived in Buda where they were greeted as heroes. During 1444 ambassadors of Christian forces were sent to Adrianople and organized signing of a ten-years long peace treaty known as the Peace of Szeged.
Contemporary Ottoman sources blame rivalry between the commanders Kasim and Turahan for the defeat at Kunovica, while some claim that the Serbian Despot Đurađ Branković bribed Turahan not to participate in the battle.[2] Turahan fell from favour as a result and was banished by the Sultan to a prison in Tokat.
This battle is commemorated in Serbian epic song Blow, Wind (Serbian: Подухни ветре).[3]