Stephen B. Heintz is an American nonprofit executive and public policy expert. Since 2001, he has served as president of the Rockefeller Brothers Fund, a family foundation with an endowment of approximately $1.2 billion that advances social change for a more just, sustainable, and peaceful world. Heintz coined the term “acupuncture philanthropy” to describe his philanthropic approach of leveraging modest financial assets to trigger larger systemic change on critical issues.