Jennifer Buffett is an American philanthropist and the co-founder of the NoVo Foundation, which focuses on promoting social justice and empowering women and girls. She is known for her commitment to various causes, including education, economic development, and environmental sustainability. As the wife of billionaire investor Warren Buffett, Jennifer has played a significant role in charitable initiatives, advocating for systemic change and community support. Her work emphasizes collaboration with grassroots organizations to create lasting impact and improve the lives of marginalized populations.