Current challenges of globalization in a democratic post-industrial information society make the competency-based approach a standard in the creation of the global educational environment. This study describes the special aspects of the integration of the competency-based approach into the educational theory and practice of post-Soviet countries, substantiated the necessity of including the global dimension in the structure of teachers' professional competency based on the analysis of approaches in Western and post-Soviet educational theory and pedagogical practice, and specified the definition and structure of global competency as a component of teachers' professional competence.