This paper puts in order some characteristics of Altaic language group and Ainu national origin mythologies. Altaic peoples are divided into the Turkic, Mongolian, and Manchu-Tungus language groups, and compared with the Ainu, which are classified as an ancient Asian people group. The Ainu, however, are identical to the Altaic groups in both religion (shamanism) and various mythological elements as well. Thus it appears that the Ainu share much in common with the Altaic people groups. Through this research I have taken a sampling of some of the similarities and differences in the national origin mythologies of the Altaic people groups and the Ainu. One similarity is that all of the groups worship a heavenly god; this appears to be related to the identical shamanistic beliefs of these groups, since the most important characteristic of shamanism is the worship of such a heavenly god. All of these groups also worship animals, which can also be judged to be related to shamanism. Yet the differences appear in the specific target of worship. Wolf worship, for example, is strong in the Turkic language group, while the Mongol language group peoples worship the dog, horse, and cow, and the Manchu-Tungus language group peoples and the Ainu worship the bear. This can be understood to be a product of the natural and ethnic environments in which each people group exists. Also, a strong relationship is revealed in the bear worship and tree worship that the Manchu-Tungus share in common. The above research is merely an organization of the characteristics of Altaic national origin mythologies, not a deep examination of the subject. Yet this research shows promise for a meaningful investigation of the origins of various East Asian people groups from a mythological perspective.