Female genital mutilation (FGM) and cutting is a subject of global interest, with many countries of the world still practicing it despite efforts by the WHO and other agencies to discourage the practice. The highest known prevalence is in Africa. To determine the knowledge, attitude and practice of FGM among nurses in the ancient metropolis of Benin in a Nigerian state where FGM is illegal. One-hundred-ninety-three nurses in the study hospital were recruited in the study out of which 182 (94.3%) appropriately filled and returned the questionnaires. The average age of respondents was 37 years, and the average duration of postgraduation experience was 14.5 years. Most respondents are of Bini (36.8%) and Esan (34.1%) ethnic origin. All respondents identified at least one form of FGM, but only 12 respondents (6.6%) could correctly identify the four types of FGM. The harmful effects of FGM identified by the majority of respondents include hemorrhage, difficult labor/childbirth, genital tears, infections and scar/keloid formation. Forty-four (24.2%) of respondents were of the opinion that some forms of FGM are harmless. Eighty nurses admitted to having undergone FGM, for a prevalence of 44%. Five respondents (2.8%) view FGM as a good practice and will encourage the practice. Twelve respondents (6.6%) routinely perform FGM out of which seven (58.3%) viewed FGM as a bad practice. Nurses performing FGM routinely were those who had spent >20 years (59%) and 11-20 years (41%) in the profession. Another 26 (14.3%) had performed FGM before, though not on a routine basis. Of this latter group, 15 will perform FGM in the future when faced with certain circumstances. Reasons for FGM practice were mainly cultural. Eight of the respondents would have their daughters circumcised. Nurses perceive FGM in Benin as cultural. Almost half have had FGM themselves, and a small percentage recommend it to their daughters. Discouraging FGM practice will require culturally sensitive education of the healthcare providers and the population at large on the ill effects of FGM, including the risk to health and violations of human rights.