The head and neck area is the most complex area of the human body, with its most physical connections to the outside environment. So it plays host to a variety of infections. Sinonasal tract fungal infections are not uncommon and the surgical pathologist is concerned with establishing a correct etiological diagnosis because many of the infectious fungal masses are confused with neoplasms both clinically and radiologically. So this study was aimed to identify the histomorphological type of fungal infections in the sinonasal tract and their prevalence according to various clinical parameters. This was a retrospective study carried out in the Department of Pathology, Karpaga Vinayaga Institute of Medical Sciences for a period of 3 years (Feb 2016 to Feb 2019) and all the Sinonasal tract lesions morphologically diagnosed to have fungal infections were included in this study. During the study period, Out of 11,301 total histopathology specimens received, 40 cases were diagnosed with sinonasal fungal infections (0.35%). Of these, 77.5% were males, 22.5% were females with male preponderance. The most common type of fungal infection was Aspergillosis (14 cases), followed by Mucormycosis (11cases). The most common site of infection in the sinonasal tract was Maxillary sinus. In this study, we attempted to determine the etiological diagnosis of sinonasal fungal infections and the Histopathological examination can render efficient identification of infectious fungal organisms and remains the only feasible and rapid means to identify fungal organisms for starting appropriate therapy for patients.