Introduction: Cancer patients are at high risk of developing a wide range of medicalemergencies.Patients with cancer face unique disease and treatment-related complications that promptfrequent visits to the emergency department (ED), constituting a significant patient andhealth care burden, resulting in more utilization of resources and ED overcrowding, whichmay hamper the administration of quality and focused care.Objective: The study aimed to assess the patterns, outcomes, and associated factors ofoncologic emergencies among patients visiting Saint Paul's Hospital Millennium MedicalCollege adult emergency department from March 1/2021, to April 30/2022.Methods: A retrospective institutional-based cross-sectional study was used. Data wascollected using a standardized data extraction tool by trained data collectors from patientmedical records and health management information system registry books using asystematic sampling method. A total of 173 cancer patients were included. Data wasanalyzed using SPSS version 25.0.Results: A total of 173 cancer patients were included in the study. The mean age of thestudy participants was 53.05 ± 14.801 years. 56.6% were females, and 43.4% were males.The most prevalent primary tumors were those of the gastrointestinal tract (49.7%) andgenitourinary system (19.1%). About 39.9% of the cases had metastasis. Only 39.3% ofcases started cancer treatment. Oncologic emergencies account for 68.8% of the cases. Themost frequently observed oncologic emergencies were structural (Mass effect) in 64.7% ofcases and hematologic emergencies in 34.45%. About 19.3% of patients with oncologicemergencies have died. The commonest cause of death was due to Gastrointestinalmalignancies, seen in 34.6% of the cases. Those with Hematologic Emergencies had a 4.2times risk of death as compared to patients with local mass effects (P value < 0.006).Conclusion: Oncologic emergencies comprised 68.8% of the cases, of which 19.3% resultedin mortality. There should be a well-organized system with chemotherapy, radiotherapy,and palliative care facility service for patients with oncologic emergencies to reduce patientmortality.