2400 BC[7]) was king of the Sumerian city-state of Umma and husband of queen Bara-irnun.

[8] He is particularly known from a gold votive plate by his queen, in which she describes her genealogy in great detail.

[7] The inscription on the plate reads: For (the god) Shara, lord of the E-mah: when Bara-irnun - wife of Gishakidu, king of Umma, daughter of Ur-Lumma, king of Umma, grand-daughter of Enakalle, king of Umma, daughter-in-law of Il, king of Umma - had made Shara resplendent and had built him a holy throne, for her life, to Shara, in the E-Mah, she offered (this ornament).

[12] Bara-irnum married her cousin Gishakidu, thus re-uniting both stands of the royal family by a marital alliance.

[12][11] Gishakidu is also known from a dedicatory inscription on a cylinder: When Shara spoke to Enlil, the prayers gathered in his heart, and when he approached him, Gishakidu, the beloved shepherd of Shara, the one born .... a warrior Prince, the fear-inspiring leader of Sumer, who has no rival in all the foreign lands, the en-priest attached to the side of Ninura, counseled by Enki as by his own mother, the beloved friend of Ishtaran, the mighty governor of Enlil, the king selected by Inanna, at that time he constructed this boundary dyke.A foundation inscription in his name is also known.