Objectives: To find out the disease pattern of patients attended at the ENT outpatient department of a tertiary level hospital in the center of Dhaka city and to aware the people about the consequences of ENT diseases, necessity of early management, prevention and also the health care management about the necessity of establishment of proper referral system. Methodology: It is retrospective observational study performed in the ENT OPD of Shaheed Suhrawardy Medical College Hospital based on data collected by Resident Surgeon during his consultation of referral patients in his OPD chamber between 01 July 2014 and 31 December 2014. A total of 3686 patient's data were analyzed. Results: Out of 3686 OPD patients male were 1947 (52.82%) and female 1739 (47.17%), ratio is 1.12:1. 11 to 40-year age group patients were more, among them 11-20 (17.25%), 21-30 (21.51%) and 31-40 (21.62%). 47.97% were presented with Ear diseases, 18.96% with Sinonasal diseases, 19.89% with Throat diseases, 2.03% with Laryngeal & Hypopharyngeal diseases, 9.44% with Neck diseases and 1.71% with Oral cavity problems. Conclusion: Prevalence of Ear diseases are more in Bangladesh like other developing countries. A good numbers of cancer patients were fund in the study. Almost half of the patients were attended from rural and slum areas, means under privileged people are getting concern about ENT problems like other medical diseases. A large number of patients came to this center which can be easily managed in Union sub-center, Upzilla health complex or District general hospital. It is recommended to develop proper referral system in our health system.