Background: Worldwide, myocardial diseases are major contributors to patient morbidity and death. Cardiovascular Magnetic Resonance (CMR) has gained recognition as a useful clinical technique that may evaluate ventricular function and volumes, myocardial fibrosis, iron loading, flow measurement, tissue characterisation, and myocardial perfusion imaging all in a single scan scenario. Objective: This study aimed to identify the role and diagnostic potential of cardiac magnetic resonance imaging to diagnose cardiomyopathy. Patients and methods: A cross-sectional study that was conducted through the period from October 2020 to May 2022 at Radio Diagnosis Department, National Heart Institute. The study involved 50 patients who had clinical suspicion of cardiomyopathy. They were referred from Cardiology Department. The mean age of patients was 57.42 ± 6.45 years. Results: There was a significant difference between Echo and Cardiac MRI regarding ejection fraction and end diastolic volume among the studied patients. Also, EF% was significantly higher with cardiac MRI (45.60 ± 8.12%) compared to Echo (43.00 ± 7.49%), with a mean difference of 2.60 ± 2.42%. Furthermore, EDV/ml was significantly higher with cardiac MRI (161.54 ± 48.14 ml) compared to Echo (158.50 ± 46.38 ml), with a mean difference of 3.04 ± 5.26 ml. Conclusion: Cardiac magnetic resonance technique was more accurate for diagnosis among patients suspicioned of cardiomyopathy compared to echocardiography.