Mesopotamia Historical region within the Tigris–Euphrates river system

For other uses, see Mesopotamia (disambiguation). "The Two Rivers" redirects here. For other uses, see Two Rivers. Mesopotamia is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent. Today, Mesopotamia occupies modern Iraq. In the broader sense, the historical region included present-day Iraq and part