While most Mesopotamian sources do not treat Ninazu and Tishpak as equivalents, and they appear separately in the prologue of Laws of Hammurabi, a bilingual inscription from the reign of Shulgi of Ur lists Tishpak in the Akkadian version and Ninazu in Sumerian as the god worshiped in Esikil. Wilfred G. Lambert additionally proposed that Tishpak could be understood as a deity connected with Ninurta, based on his association with Ninazu, who shared many traits with the latter. Similarly, Andrew R. George argues that Tishpak's placement in the so-called Canonical Temple List might indicate he was one of the deities who could be syncretised with Ninurta, similar to Lugal-Marada, Zababa or Urash. According to Marten Stol, both classification of Tishpak as a Ninurta-like figure ("Ninurta-Gestalt") and direct equation between these two gods (Tishpak being described as Ninurta ša ramkūti) is attested in a single document each.
