Bulgar–Serb War (839–842)

Bulgar-Serb War (839–42)
Part of the Bulgarian–Serbian Wars (medieval)

Bulgarian Empire, Serbian principalities and the Balkans in the 9th century
Date839 – 842
Location
Central Balkans
Result Serbian victory
Belligerents
First Bulgarian Empire Serbian Principality
Commanders and leaders
Presian I Vlastimir
Casualties and losses
Heavy Unknown

The Bulgarian-Serbian War of 839–842 was fought between the First Bulgarian Empire and the Serbian Principality. It was the first conflict of the medieval Bulgarian–Serbian Wars.