Delirium is highly prevalent in advanced cancer and has substantial consequences for patients, families, healthcare professionals and health services. Nurses are in a key position to prevent, detect and manage delirium in palliative care settings. This narrative review aimed to synthesise and critically appraise the literature on nursing interventions for the prevention and management of delirium in adults with cancer receiving palliative care, and to identify priorities for future research. A comprehensive search of CINAHL Ultimate, MEDLINE Ultimate and grey literature was conducted for Portuguese and English language publications published between January 2006 and December 2025. The review was structured and reported using the IMRAD (Introduction, Methods, Results and Discussion) framework. 61 records were screened at title/abstract level, and 17 studies met the inclusion criteria. Three main areas were identified: (i) comprehensive assessment to support early delirium detection and evaluation of nursing intervention outcomes; (ii) nursing interventions for delirium prevention and management; and (iii) team-based communication and shared decision-making regarding the person’s health status. Overall, the evidence suggests that comprehensive, person-centred assessment combined with systematic interdisciplinary information sharing is central to effective nursing care for delirium in this population. Further research is warranted, particularly to evaluate the effectiveness of non-pharmacological nursing interventions for delirium prevention and management in palliative cancer care.