Introduction: Viral myocarditis occurs due to inflammation of the myocardium. It is most commonly caused by viral infections. Influenza viruses known to cause myocarditis. Case presentation: An 8 years old previously healthy girl, presented with one-day history of fever, two episodes of loose stools, and one episode of unresponsiveness. On arrival, she was hemodynamically stable. Then she developed sudden cardiorespiratory arrest. Following resuscitation, she became hypotensive, tachycardiac and had poor peripheral circulation. She was commenced on intravenous fluids, Meropenem, Acyclovir and Noradrenaline infusion. She was admitted to the Medical Intensive Care Unit (MICU). Pediatric cardiology opinion was obtained. Her serum troponin I was elevated. ECG demonstrated ischemic changes (including low-voltage QRS complexes and ST-segment abnormalities in leads I, II, III, V1, and V2) with features of myocarditis and pericardial effusion. A nasopharyngeal swab detected Influenza BspecificRNA. During MICU stay , child developed another sudden cardiorespiratory arrest and not revived. The final diagnosis was viral myocarditis secondary to Influenza B infection. Discussion: Viral myocarditis should be considered in any child presenting with unexplainedcardiovascular compromise. Early diagnosis, intensive monitoring, and aggressive supportive care are crucial.