Background The field of nursing has long been concerned with ethical issues. The history of the nursing profession has a rich legacy of attention to social justice and to societal questions regarding issues of fairness, access, equity, and equality. Some nurses have found that their clinical experiences spur an interest in ethical patient care, and many are now nurse bioethicists, having pursued additional training in bioethics and related fields (e.g., psychology, sociology). Purpose The authors describe how the clinical and research (...) experiences of nurses give them a unique voice in the field of bioethics. Results Authors present reasons for the relative invisibility of nurse bioethicists, compared with physician, theologian, or philosopher bioethicists, as well as current efforts to increase the visibility of nurse bioethicists. They also describe four specific areas where nurse bioethicists have made and continue to make important contributions: as ethics consultants to colleagues in hospitals and other settings; as bioethics researchers or as advisers to researchers conducting trials with human subjects; as educators of trainees, patients and families, healthcare providers, and the public; and in helping to draft humane and ethical policies for the care of vulnerable patients and underserved populations. Conclusion Nurse bioethicists are central to the future goals of healthcare bringing a unique perspective to the day-to-day ethical challenges of both clinical care and research, as well as to the education of health professionals and the public. (shrink)