The Vorotan (Armenian: Որոտան, Azerbaijani: Bazarçay) is a river in Transcaucasia, a left tributary of the Araks River. It rises in the northern part of the South-Armenian province of Syunik, flows for 119 km in a generally southeastern direction through Armenia and then for another 59 km through Nagorno-Karabakh, the region claimed by both Armenia and Azerbaijan, before emptying into the Araks at the border with Iran. The river flows mostly through mountainous country and in several places through deep canyons. The towns of Sisian and Kubatly lie along its course.