The Assa (Tsirtslovn-Tskhali, , , , ) is a right tributary of the Sunzha River in Georgia and Russia. It is located in Dusheti Municipality of Mtskheta-Mtianeti, Georgia; and in Dzheyrakhsky and Sunzhensky Districts of Ingushetia and in Sunzhensky and Achkhoy-Martanovsky Districts of Chechnya, Russia.