Renal diseases are one of the most common conditions seen among various age groups of dogs that cause multiple electrolyte and metabolic abnormalities, thereby leading to mortality in affected dogs. A total of 551 out of 3085 dogs (overall occurrence 17.86 per cent) with a mean age of 8.12 ± 0.41 years identified with various renal diseases upon abdominal ultrasonography during the two-year study period. Highest occurrence of renal diseases was recorded amongst the Labrador, Spitz, Pug and Non-Descriptive breeds of dogs. Male dogs were represented more frequently (60.44%) than females. Ultrasonography of kidneys revealed chronic renal changes (435/551, 78.94%), acute kidney injury (46/551, 8.34%), nephrolithiasis (29/551, 5.26%), renal mineralization (25/551, 4.53%), renal cysts (11/551, 1.99%) and renal mass lesions (5/551, 0.90%) as various renal diseases in dogs.