[2] A goddess named Nin-UNUG who appears in the Early Dynastic Zame Hymns, which describe her as the tutelary deity of Kullaba (also spelled Kullab), a district of Uruk, is sometimes assumed to be Ninirigal, though this remains uncertain and the reading Ninunug is also considered a possibility.
[10] Her reintroduction to the pantheon of the city was most likely related to the antiquity and local character of her cult, similar as in the case of Pisangunug.
[15] Jeremiah Peterson notes that a location associated with Gibil, which in one text is stated to be the place of his birth, was written the same way as the element irigal in Ninirigal's name, AB-gal, and proposes that the theonym and the toponym in mention might be related.
[16] Since Ninirigal appears in some of the copies of the myth Nanna-Suen's Journey to Nippur, even though in the standard version Sud is instead present in the same passage,[17] according to Manfred Krebernik it is possible in certain contexts these two deities were conflated.
[3] While it has been argued in early scholarship that Ninirigal was related to or identical with Inanna, no evidence in favor of this theory is available, even though she was also worshiped chiefly in the territory of Uruk.