Battle of Dervenakia

BelligerentsFirst Hellenic RepublicOttoman EmpireCommanders and leadersTheodoros Kolokotronis
Demetrios Ypsilantis
Papaflessas
NikitarasMahmud Dramali PashaStrength 8,000–10,000 20,000 (including 8,000 cavalry)Casualties and losses Unknown 20,000 dead

The Battle of Dervenakia (Greek: Μάχη των Δερβενακίων) was the Greek victory over the Ottoman forces on 6–8 August 1822, an important event in the Greek War of Independence.

It resulted in the defeat of a major expedition by Mahmud Dramali Pasha, intended to quell the ongoing Greek rebellion which had begun in 1821. The destruction of Dramali Pasha's forces saved the heartland of the rebellion, the Morea, and secured it for the Greeks until the arrival of Ibrahim Pasha in 1825.