BACKGROUND:: The understanding of what palliative care is, and which patients may benefit from palliative care, has important implications for optimal patient care in all areas of health provision. AIM:: To explore the understanding of palliative care by healthcare professionals caring for patients with advanced cancer attending emergency departments. DESIGN:: Qualitative study, with two phases: the first, a series of focus groups with healthcare professionals from various disciplines and settings caring for patients with advanced cancer presenting to emergency departments; the second, semi-structured telephone interviews with emergency healthcare professionals across Australian States and Territories, including outside metropolitan centers. The data were audio-recorded and transcribed, with analysis undertaken using a qualitative thematic analysis. SETTING/PARTICIPANTS:: Saturation of themes was reached after 8 focus groups (22 emergency nurses, 21 emergency physicians, 6 oncologists, 6 hospital palliative care clinicians, and 28 community palliative care clinicians) and 11 telephone interviews (8 emergency physicians and 3 emergency nurses), a total of 94 participants. RESULTS:: The overarching theme was that healthcare professionals held contradictory understandings of palliative care and its application in the emergency department; subthemes highlighted these inconsistencies when the term “palliative” is used, in understandings of and engagement with palliative care services and in perceptions about the practical utility of palliative care. CONCLUSION:: There are entrenched contradictions and tensions surrounding the term “palliative care”; confronting these is likely to require more than re-branding, and will promote better care for this vulnerable patient group in the emergency department.