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The language of the Malkhs^[7] (whose name, malkh, refers to the sun) in the North Caucasus, who lived in modern day Kabardino-Balkaria, Karachay–Cherkessia, and once briefly conquered Ubykhia and Abkhazia, is believed to be of Nakh affiliation. They were conquered first by Scythian-speaking Alan tribes and then by Turkic tribes, and seem to have largely abandoned their homeland and found shelter among the Chechens, leading to the formation of a teip named after them. Those who stayed behind were either wiped out or assimilated.

The language of the Dvals is thought to be Nakh by many historians,^{[7][8][9][10]} though there is a rivaling camp arguing for its status as a close relative of Ossetic.^[10] Various backing for the Nakh theory (different scholars use different arguments) includes the presence of Nakh placenames in former Dval territory,^[10] evidence of Nakh–Svan contact which probably would've required the Nakh nature of the Dvals or people there before them,^[7] and the presence of a foreign-origin Dval clan among the Chechens,^[11] seemingly implying that the Dvals found shelter (like the Malkhs are known to have done) among the Chechens from the conquest of their land by foreign invaders (presumably Ossetes).

According to Georgian scholars I. A. Javashvili and Giorgi Melikishvili, the Urartian state of Supani was occupied by the ancient Nakh tribe Tsov, whose state is called Tsobena in ancient Georgian historiography.^[12][13][14] The Tsov language was the dominant language spoken by its people, and was thought by these Georgian historians (as well as a number of others) to be Nakh. Tsov and its relatives in the area may have contributed to the Hurro-Urartian substratum in the Armenian language.