Kar-Tukulti-Ninurta (modern Tulul ul Aqar in Salah al-Din Governorate, Iraq) was a new cult center for Ashur and perhaps a new capital city founded by the Assyrian king Tukulti-Ninurta I (about 1243–1207 BC) just north of Assur. Its name meant "Port Tukulti-Ninurta".