In Ob-Ugrian mythology [ru] (i.e., mythology of Khanty and Mansi peoples), Kaltas-Ekwa (Russian: Калтась-эква) was the mother of the hero Mir-Susne-Hum and the wife of the god Num-Torum, who defeated her in heaven.^[1] She was also a goddess of the moon associated with the month April; a birth giving goddess (she is called upon by women in child-birth); goddess of fate; goddess of dawn and a shape-shifter, often shown manifested as a hare.

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You can help expand this article with text translated from the corresponding article in Russian. (March 2024) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 1,239 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Russian Wikipedia article at [[:ru:Калтась-эква]]; see its history for attribution. You may also add the template {{Translated|ru|Калтась-эква}} to the talk page. For more guidance, see Wikipedia:Translation.

Vladimir Napolskikh and Sergey Belykh suggest that the name is a borrowing from the goddess name Kyldys-in of neighboring peoples and draw a parallel with with Kyldysin [ru], Udmurt deity of agriculture, fertility and newborns.^[2]