Ninshubur (đ’€đ’ŽŹđ’‹š; also spelled Ninšubur, Ninšubura or Nincubur) is the sukkal (vizier) of the goddess Inanna in Sumerian mythology. Ninshubur also served as the vizier of the sky god An and by extension as the messenger of the assembly of the gods, similar to Greek Hermes or Iris. Her name means "Queen of servants" or "Queen of Subartu" in Sumerian.
She was originally worshiped in Akkil, but in the Early Dynastic Period, she was already worshiped in other cities, including Lagash, Nippur, Shuruppak, and Uruk. Many kings of Lagash regarded her as their personal deity. Due to the belief that she could intercede with higher-ranking deities, she was popular in everyday religion, and many theophoric names invoking her and other references to personal worship are known from ancient sources.
In myths, Ninshubur accompanied Inanna during many of her most famous exploits. She helped Inanna fight Enki's servants from the Apsu after Inanna's theft of the sacred me. In another myth, when Inanna became trapped in the Underworld, it was Ninshubur who pleaded with Enki for her mistress's release.
She was syncretised with other messenger deities, most notably Ilabrat and Papsukkal. In the second half of the first millennium BCE the latter replaced her in the role of primary servant of An.