Enmebaragesi (Me-Baragesi, En-Men-Barage-Si, Enmebaragisi, fl. ca. 2600 BC) was a king of Kish, according to the Sumerian king list. The list states that he subdued Elam, reigned 900 years, and was captured single-handedly by Dumuzid "the fisherman" of Uruk, predecessor of Gilgamesh.
He is the earliest ruler on the king list whose name is attested directly from archaeological remains: two alabaster vase fragments with inscriptions about him found at Nippur — where he is said to have built the first temple, according to the Sumerian Tummal Chronicle.
He is also mentioned in a section of the Epic of Gilgamesh, Gilgamesh and Aga, as the father of the Aga who laid siege to Uruk. The king list and the Tummal Chronicle both agree with the Epic in making him the father of Aga, last of the dynasty at Kish. Hence the fragments authenticating Enmebaragesi's existence have suggested that Gilgamesh might also have been a historical ruler.