ShareForCures (SFC) will be a people-powered, data-driven breast cancer registry that will provide a way for individuals from diverse backgrounds to participate in research and enable participants' data to be used for breast cancer research. The overarching goal of SFC is to create a robust research resource comprised of clinical, biological, socio-behavioral, and other data from up to 200,000 people with breast cancer-including minoritized and historically marginalized people, persons, or communities-to ensure the data, researchers use to study breast cancer, is as diverse as the people touched by this disease. In doing so, researchers will have a better understanding of breast cancer and everyone can potentially benefit from scientific advances and improvements in care.