The Third Perso-Turkic War is the third and final conflict between the Sassanian Empire and the Western Turkic Khaganate.

Unlike both previous wars, it is fought west of Central Asia, in Transcaucasia.

Hostilities are initiated in 627 by Khagan Tong Yabghu of the Western Göktürks and Emperor Heraclius of the Eastern Roman Empire.

Opposing them are the Sassanid Persians, allied with the Eurasian Avars.

The war is fought against the background of the last Byzantine-Sassanid War and serves as a prelude to the dramatic events that are to change the balance of powers in the Middle East for centuries to come.