The Pirsaat (Azerbaijani: Pirsaatçay) is a river in Azerbaijan which flows through Ismailli, Shamakhi and Salyan Rayons. Length - 199 km, basin area - 2,280 km2. The river is fed by snow, rain and groundwater. Its largest tributary is Zoghalava.
On the right bank of the river there is Chukhuryurd village inhabited by molokans. The medieval Pirsaatchay Khanagah is at the Salyan portion of the river.
Coordinates: 39°51′N 49°23′E / 39.850°N 49.383°E