Ninsianna is the Sumerian deity of the planet Venus. She was originally a goddess, but was sometimes later viewed as a god. She is described in one text as the "holy torch who fills the heavens" and was frequently associated with haruspicy. Her worship is first attested during the Third Dynasty of Ur and she continued to be venerated until the Seleucid Period. Especially in later texts, she is often subsumed as an aspect of Inanna-Ishtar. Her main cult center was the É-eš-bar-zi-da temple in Ur, but she also had other temples in Sippar, Larsa, and Uruk.