The Shahed 129 (Persian: ???? ???, English: "witness" or "martyr"; sometimes S129) is an Iranian single-engine medium-altitude long-endurance unmanned combat aerial vehicle (UCAV) designed by Shahed Aviation Industries for the Islamic Revolutionary Guard Corps (IRGC). The Shahed 129 is capable of combat and reconnaissance missions and has an endurance of 24 hours; it is similar in size, shape and role to the American MQ-1 Predatorand is widely considered as one of the most capable drones in Iranian service.
The UAV has been used for airstrikes in the Syrian Civil War and for border patrol on Iran's eastern border.As of 2017 the Shahed 129 and Saegheh are expected to form the backbone of Iran's high-end UAV fleet for at least the next decade.