Abstract: Parallels in lunar myths of the Turks (ancient Turks), Mongolian peoples and Eastern Finno-Ugric peoples (Mordvins, Mari, Komi, Udmurts) are the subject of this research. So far, lunar motifs in beliefs of these ethnic groups have not been specially compared with each other. In the article, the authors make an attempt based on a comparative analysis of mythological images and plots, and specifically, lunar myths which are essentially universal for all peoples of the world, to provide additional arguments in favor of confirming the hypothesis of V.V. Napolskikh about the existence of a special North Asian community of the Northern Eurasian peoples mythologies.
Based on the review analysis and the research, the authors have come to the following conclusions. Firstly, the moon deity in myths of the Turks, Mongolian peoples and Eastern Finno-Ugrians is a predominantly male deity having a close link with the underworld and the image of the death god. Secondly, the mythologeme about the origin of the moon from the water is another specific Ural-Altai element. Thirdly, in the mythology of the Turks, Mongolian peoples and Eastern Finno-Ugrians, the deities of the moon, most likely, go back to totems in the form of birds (primarily waterfowl), a bull, probably more related to the water element.
Thus, the assumption of V.V. Napolsky about the existence of a North Asian mythological union receives additional support.