Objectives: To summarize and critically evaluate the body of research on the connection between obesity and sudden cardiac death (SCD) risk. Methods: To locate research that met the inclusion criteria, a thorough computerized search of relevant databases was carried out. A comprehensive search was carried out on PubMed, SCOPUS, Science Direct, Cochrane Library, and Web of Science to locate relevant material. Results: Our data included seven trials with 104,697 participants and 68,738 (65.7%) were males. The prevalence of SCD among obese patients ranged from 0.05% to 37.1%, with a total prevalence of 1111 (1.1%). Five studies stated that as BMI rises, so does the chance of SCD. Obesity in the early stages of life and obesity and overweight throughout adulthood are risk factors for SCD [13, 15]. Many studies highlighted the interplay between obesity and cardiovascular comorbidities, such as hypertension, coronary artery disease, and heart failure, in increasing the risk of sudden death. Conclusion: The results of this comprehensive review offer strong evidence that obesity poses a substantial risk of sudden death, with the risk rising as obesity severity increases. In those who have pre-existing cardiovascular problems and significant obesity, the relationship is very high. Subsequent investigations have to concentrate on improving comprehension of the correlation between obesity and unexpected mortality, as well as creating practical methods to lower this risk in medical settings.