Eridu (Sumerian: 𒉣𒆠, romanized: NUN.KI; Sumerian: eridug; Akkadian: irîtu) was a Sumerian city located at Tell Abu Shahrain (Arabic: تل أبو شهرين), also Abu Shahrein or Tell Abu Shahrayn, an archaeological site in Lower Mesopotamia. It is located in Dhi Qar Governorate, Iraq, near the modern city of Basra. Eridu is traditionally considered the earliest city in southern Mesopotamia based on the Sumerian King List. Located 24 km (15 mi) south-southwest of the ancient site of Ur, Eridu was the southernmost of a conglomeration of Sumerian cities that grew around temples, almost in sight of one another. The city gods of Eridu were Enki and his consort Damkina. Enki, later known as Ea, was considered to have founded the city. His temple was called E-Abzu, as Enki was believed to live in Abzu, an aquifer from which all life was thought to stem. According to Sumerian temple hymns, another name for the temple of Ea/Enki was called Esira (Esirra).
At nearby Ur there was a temple of Ishtar of Eridu (built by Lagash's ruler Ur-Baba) and a sanctuary of Inanna of Eridu (built by Ur III ruler Ur-Nammu). Ur-Nammu also recorded building a temple of Ishtar of Eridu at Ur which is assumed to have been a rebuild.