Introduction. The article deals with the patrilineal system of the Kyrgyz and Russian languages. The results, studies of the terms of kinship of the patrilineal system of the Kyrgyz and Russian languages are presented. It is revealed that the kinship system of the Kyrgyz language belongs to the general Türkic vocabulary fund, and the system of kinship of the Russian language to the general Slavic vocabulary fund, and also considers the characteristic features of these lexical fields. Research methods: Synchronous-comparative, namely typological. The object of this article is a plan of the content of the lexical-semantic field of kinship in the Kyrgyz and Russian languages. Research results. The terms of kinship were considered, such as: «ata», «choӊ ata», «baba», «cuba», «zhoto» and others. The terms are conventionally named: «Patronyms of the older generation» (PSP) and we will try to determine the specifics within this functional field, based on lexicographic sources. The article will consider and identify the semantic features of the patrilineal system or patronyms of the older generation (PSP), the purpose of which is, firstly, a general characteristic that exists in the field of kinship terminology, and, secondly, the definition of the specifics of the language within this lexico-semantic group. Conclusions. The patrilineal kinship system assumes the primacy of the male generation for both Kyrgyz and Russian ethnolinguistics, but in the Kyrgyz language it has a deeper and more stable character.