The purpose of this paper was to analyze Heidegger‟s conceptualization of language in the formation of cultural identity. The study aimed at finding a Heideggerian solution to how language would play an important role in formation of a cultural identity, since Heidegger perceived language as the disclosure of being unlike the traditional attitude that observed language as a mere tool for communication. The study employed a phenomenological-analytical method which was used to break down concepts by analyzing them, seeking the nature of the concepts (being, language and culture) and hence finding the distinctive relationship between language and being and how culture becomes the mode of man‟s existence. In line with this methodology, the study employed the pragmatic-existential theory in assessing the role of language in man‟s being and how language discloses his being and the being of culture. From a Heideggerian perspective, being-in-the-world reflects a marriage of the human being‟s language and culture in which one exists as language plays an important role in the social construction of self. It was revealed to the study that finding out that being, language and culture are viewed as inseparable, and as in this perspective meaning represents the constituted ideal of being with others in the world, in shared humanness and in shared interactions in the world which are made possible by language as a mode of being. It was concluded that man is incapable of anything without a language, he knows nothing of his world, he has no culture, and he thus has no mode of existence and therefore has no knowledge of his world.