Kizilsu is a city located in the Şırnak Province of southeastern Turkey. It is situated in the region near the borders with Iraq and Syria, an area characterized by rugged mountainous terrain in the Mesopotamian highlands.
The city serves as a local administrative and commercial center for the surrounding region. Like other settlements in Şırnak Province, Kizilsu's economy is primarily based on agriculture and pastoralism, reflecting the traditional livelihoods of southeastern Anatolia.