| Enannatum I | |
| King of Lagash | |
| Spouse: | Ashumen |
| Issue: | Meannesi Lummatur Entemena |
| Reign: | c. 2450 BC |
| Father: | Akurgal |
| Predecessor: | Eannatum |
| Successor: | Entemena |
| Dynasty: | 1st Dynasty of Lagash |
Enannatum I (sux|{{cuneiform|,), son of Akurgal, succeeded his brother Eannatum as Ensi (ruler, king) of Lagash.[1] During his rule, Umma once more asserted independence under its ensi Ur-Lumma, who attacked Lagash unsuccessfully. After several battles, Enannatum I finally defeated Ur-Lumma.[1] Ur-Lumma was replaced by a priest-king, Il, who also attacked Lagash.
Enannatum had a son named Meannesi, who is known for dedicating a statue for the life of his father and mother.[2] [3] He has two other sons, Lummatur, and Entemena, the latter succeeding him to the throne.[1] His wife was named Ashumen.[1]