Background: Dengue is a febrile illness caused by infection with 1 of 4 dengue viruses transmitted by the Aedes mosquito. The present study was conducted to assess ECG manifestation of dengue fever. Materials & Methods: 82 dengue fever patients were enrolled in study. Clinical features and ECG changes such as sinus bradycardia, sinus tachycardia, non- specific ST changes and RBBB were recorded. Results: Out of 82 patients, males were 50 and females were 32. We observed that common clinical features were fever in 75, myalgia in 23, headache in 41, abdominal pain in 32, rashes in 15, arthritis in 17, palpitations in 20 and diarrhoea in 5 cases. We found that common ECG changes were sinus tachycardia in 6, sinus bradycardia in 30, non- specific ST changes in 12 and RBBB in 4 cases. The difference was significant (P< 0.05). Conclusion: Common ECG abnormality in patients with dengue fever was sinus bradycardia.