This article featuring Nigeria constitutes one of five articles in a collection of essays on local capacity-building in research ethics by graduates from the University of Toronto’s Joint Centre for Bioethics MHSc in Bioethics, International Stream programme funded by the Fogarty International Center for Advanced Study in the Health Sciences (FIC). The first National Health Research Ethics Committee was inaugurated in 2006. Since then, more institutional health research ethics committees continue to be formed. However, research ethics challenges in Nigeria are (...) systemic and require a systems approach to address them effectively. Nigeria requires capacity-building for authentic acculturation of health systems as well as for health research, education, and advocacy within the research community and the general public. Further, it requires relevant legislation and effective regulatory measures. (shrink)