We herein report a rare case of renal cell carcinoma (RCC) that metastasized to the contralateral ureter. A 55-year-old man with a past history of right radical nephrectomy due to G3 pT1b clear cell RCC one year earlier presented to our department with a complaint of gross hematuria. On computed tomography, a ureteral tumor was found in both the left distal ureter and left hydronephrosis. The ureteral tumor was pathologically diagnosed by ureteroscopic biopsies as metastatic RCC, consistent with the primary renal tumor. Partial ureterectomy and end-to-end uretero-ureterostomy were performed. Pathologic examination of the resected tumor confirmed metastatic RCC. The post-operative course has been uneventful, and to date, the patient has remained disease-free.