Background: Diffuse Crescentic glomerulonephritis (CrGN) is defined as presence of crescents in >50% of glomeruli sampled for renal biopsy. This is a critical diagnosis with clinical implications that ideally is communicated to the referring physician immediately. There is limited data on the etiology, clinical and histopathological spectrum of CrGN in Bangladeshi population. Aim: This study aims to identify the aetiology, clinico-pathological features and immunohistological patterns of crescentic glomerulonephritis in Bangladeshi population. Materials and Methods: All the crescentic glomerulonephritis diagnosed histologically at Armed Forces Institute of Pathology, Dhaka irrespective of age and sex are included in the study. The study duration was from January 2017 to December 2018. The renal biopsy samples were undergone H&E, PAS, Masson trichrome and Methanamine silver staining. For each case direct immunofluoresnece study was carried out for IgG, IgM, IgA, C3, C1q, Kappa and Lambda. Depending on clinical, biochemical, serological, histological and immunofluorescence evaluation crescentic glomerulonephritis was classified. Results: During stipulated period 43 crescentic glomerulonephritis were diagnosed which comprises 3.5% out of total 1229 non transplant renal core biopsy patients. Mean age was 30.32+ 17.41 the largest age group (15/43) being paediatric age group (<16 yrs). The male female ratio was 0.72. The most common presentation was generalized body swelling (46.51%) followed by gross haematuria (27.9%). On urine examination 38 (88.37%) patients had haematuria