Rooted in A. Bandura's (1982, 2001b) social cognitive theory, the notion of human agency has received considerable attention in vocational and career psychology for the last 2 decades, especially with the recent emergence of social constructivist thinking in the field. This article continues in the same direction. In reviewing the notion of human agency in the broad life-career context, the article illustrates and highlights the constructivist philosophy of human intention and action that constitutes the conceptual foundation of career human agency. Implications for career counseling are discussed with suggestions for using and enhancing agentic functioning in individuals' life-career development.