Intergenerational programs hold tremendous promise to achieve an equitable and peaceful society in an ever-diversifying nation. This article reviews theoretical perspectives and key concepts to systematically dismantle stereotypes, namely psychosocial and critical race theories. We provide examples of intergenerational programs undoing racist and ageist structures across the micro to macro continuum. We conclude with implications for research, practice, education, advocacy, and policy. [ABSTRACT FROM AUTHOR]