| Conflict: | Battle of Bregalnica |
| Partof: | the Second Balkan War |
| Date: | 30 June – 8 July 1913[1] |
| Place: | Bregalnica, Ottoman Empire (present-day North Macedonia) |
| Result: | Serbian victory |
| Combatant2: | |
| Commander1: | Gen. Mihail Savov Gen. Stiliyan Kovachev Gen. Radko Dimitriev |
| Commander2: | Field Marshal Radomir Putnik Gen. Petar Bojović Prince Aleksandar Karađorđević Gen. Živojin Mišić Serdar Janko Vukotić Krsto Popović |
| Strength1: | 4th Bulgarian Army - 116,000 men with 210 guns 5th Bulgarian Army - 68,000 men with 118 gunsTotal: 184,000 people (100 Infantry Battalions, 6 Cavalry Regiments, 63 Artillery Batteries) |
| Strength2: | 1st Serbian Army - 105,000 men with 145 guns 3rd Serbian Army - 70,000 men with 97 guns Montenegrin Division - 10,000 men and 6000 volunteers from the Volunteer BrigadeTotal; 191,000 people (104 Infantry Battalions, 34 Cavalry Companies, 62 Artillery Batteries) |
| Casualties1: | Over 20,000 killed or wounded[2] |
| Casualties2: | Total 16,620; of whom 3,000 killed |
The Battle of Bregalnica was fought between the armies of the Kingdom of Bulgaria and the Kingdom of Serbia during the Second Balkan War from 30 June to 8 July.[3] It was the largest battle of the war.[4]