This entry explores the notion of subjectivation as a key conceptual tool for understanding how subjectivity is historically, socially, and discursively constituted. Drawing from philosophical, psychoanalytic, and sociological traditions, it traces a genealogy of the concept across different fields of thought. Subjectivation challenges essentialist and individualistic views of the subject, emphasizing process, relation, and emergence. In psychology, it questions the presumed neutrality of knowledge and highlights the discipline’s active role in shaping forms of life and experience. In the social sciences, it provides a framework for analyzing how individuals navigate power structures, institutional dispositifs, and sociotechnical environments. Finally, the entry engages with contemporary perspectives such as new materialisms and relational ontologies, articulating subjectivation with posthuman, ethical, and political concerns.