Aim: To the best of our knowledge, the prevalence of Oto rhino laryngological disorders in patients with diabetes has not been properly documented, in this part of country, our study highlighted the prevalence of otorhinolaryngological disorders in the diagnosed patients of DM in this part of Tamil Nadu, India. Materials & Methods: This Prospective study was carried out over a period of one year, from Jan 2018 to Dec 2018 in the outpatient departments of Medicine and ENT in Government Medical College and ESI Hospital, Coimbatore. Results: 13, 464patients attended ENT OP and the inclusion criteria is met by 1434 patients, male803 (56%), female 631(44%). Males The most common ENT disorder was fungal otitis 630(44%) followed by sensorineural hearing Loss, 373 (26%) and rhinitis, 258 (18%). Chronic pharyngitis,172(12%) Conclusion: The most common ENT disorder in patients with diabetes mellitus type 2 was fungal otitis, followed by sensorineural hearing loss. Regular visit to ENT is must for all diabetic patients, for early diagnosis and prevent complications.