Background: With the renewed emphasis on palliative care in Singapore, coupled with a dearth of studies on provision of palliative care in acute services, it is timely to explore the experiences, barriers and challenges faced by oncology nurses in the acute care setting. Aim: This study aimed to explore nurses' experiences of providing palliative care in the acute oncology care unit. Method: An exploratory descriptive research methodology was adopted. Focus group interviews, involving a total of 24 nurses, were conducted. Interviews were audio-taped and transcribed verbatim. Data was analyzed using an inductive content analysis approach. Results: Five key themes emerged from the analysis: (1) nurses' perceptions of palliative care; (2) multiple roles of nurses in palliative care; (3) emotional burden of providing palliative care; (4) misconceptions of palliative care; (5) challenges in providing palliative care. Conclusion: The provision of palliative care in the acute care setting remained challenging. This is partly due to the attitudes of patients, families and healthcare workers, as well as organizational factors such as lack of training. Nurses play an important role in giving and facilitating palliative care for patients in the hospitals. Future studies can explore interventions to help overcome the challenges that are impeding nurses from providing high-quality palliative care in the acute care setting.