OBJECTIVE: The aim of this study was to assess the knowledge, attitudes, and practices of nurses in Turkiye concerning organ donation. METHODS: This survey-based, descriptive cross-sectional study was conducted from January 2020 to March 2020, recruiting 560 of 850 nurses currently working in a tertiary university hospital with a face-to-face interview technique. The questionnaire consisted of 35 questions evaluating sociodemographic features, organ donation knowledge level, attitude, and nurses' awareness. RESULTS: This study showed that only 6.5% of the nurses donated their organs. While 31.9% stated that they are willing to consider organ donation in the future, 41.3% were not decided about organ donation yet, and 27% rejected organ donation in any condition. Among the nurses who refused organ donation, 69.6% had no specific reason and 10.6% worried that their organs might be taken without proper diagnosis of brain death. About 10% denied organ donation for religious beliefs, and 5% were because of concerns about body integrity. Hesitation about procuring organs for commercial purposes was present in 7.2% of the nurses. Following a possible diagnosis of brain death of a relative, 33.8% of the nurses said that they would consent for organ donation to him/her, whereas 47.1% were not sure about this issue. Among the nurses, 76.6% agreed on a possible living-related organ donor for a close relative, 53.3% accepted receiving an organ from a close relative if required. Furthermore, this investigation showed that nurses who reported attending previous seminars, conferences, or training programs about organ donation have significantly better donation rates and stronger attitudes toward organ donation. Nurses who donated their organs are found to know better about brain death irreversibility, understand better the related national legal regulations for organ donation, and are more informed about the compatibility of organ donation with religious beliefs. CONCLUSION: This study showed that nurses have a relatively positive attitude toward donation and transplantation but are unwilling to bequeath their organs. This study underlines the indispensable contribution of nurses promoting organ donation and highlights the need for well-structured educational programs to enhance their role in organ donation and transplantation.