Urinary tract affections in canines are usually associated with variation in renal and bladder size that are indicative of associated disease. So, morphometic measurements help to distinguish between normal and diseased urinary system, guide diagnostic and surgical interventions alongwith monitoring of gradual post treatment recovery. Therefore, the present study was undertaken to determine normal radiographic morphometric measurement of canine urinary system following intravenous urography using non-ionic (iohexol) and ionic (sodium and meglumine diatrizoate) contrast agents for obtaining reference values. Twelve apparently healthy canines were randomly divided into NICA and ICA group consisting of six animals of either sex in each. Both the contrast agents were administered at the same dose rate i.e.1100 mg I/kg body weight and diluted with an equal amount of 5% dextrose saline solution and infused intravenously over a period of 10-15 minutes under general anaesthesia. Subsequently, ventro-dorsal/lateral radiographs were taken at 5, 15, 30 minutes intervals. The morphometric measurement of kidney length and width, ureter length and diameter, urinary bladder length, width and length of second lumbar vertebrae and its correlation with size of kidney and ureter was done using the in-built calipers in the CR system. Non-significant differences were observed in the radiographic morphometric measurement of the left and right kidney, left and right ureter and urinary bladder between groups NICA and ICA. Urethra could not be visualized in any of the radiographs. Therefore, the present study provides information about the normal radiographic morphometric measurements of the canine urinary system which may be helpful to the practicing veterinarians and clinicians as reference values.