Advocacy is key for the clinical mental health counseling profession. Clinical mental health counselor advocates (CMHCAs) rely on the advocacy competencies to guide their assistance to clients in removing barriers and to secure deserving resources, or to advocate on behalf of clients, groups, or communities. This chapter addresses the importance of advocacy and social justice advocacy, and the strategic positionality of the clinical mental health counselor as an advocate for addressing social and institutional barriers that reduce client access, equity, and success. It identifies the advocacy competencies and approaches to advocate for clients care, and emphasizes the ways that they foster resilience and growth. Specific cases illustrate clients' and professionals' understandings of and access to a variety of community-based resources. The chapter also addresses strategies to advocate for the profession and for clinical mental health counseling professionals.