The issues of social, cultural, and language adjustment and the integration of repatriates into the Kazakhstani society are crucial factors in maintaining a stable society. The complicated process of self-identification of ethnic Kazakhs is a major aspect of their sociolinguistic “penetration” into Kazakh society. In this work we consider the formative process of the ethnolinguistic identification as Kazakhstani repatriates. We also analyze the complex language situation in the Republic of Kazakhstan and the language policy of the country toward the Kazakh diaspora in other countries. The results of our sociolinguistic experiment of 1,000 repatriates are presented in this article.