The awareness of renal vascular anomalies is important in order to avoid diagnostic pitfalls and to plan for preoperative surgery and interventional radiology. Retroaortic left renal vein is an uncommon congenital venous variation that is classified type 1 and type 2. However, coexistence of type 1 and type 2, called double retroaortic left renal veins, is an extremely rare variation. Only a few cases of double retroaortic left renal veins have been reported. We present a case of a 51-year-old woman with double retroaortic left renal veins with multi-detector CT findings and review of embryological basis.