Objective: The aim of the study was to investigate the preventive effects of Taurine against 2,3,7,8-tetracholorodibenzo-p-dioxin (TCDD)-induced organ damage in rats. The environmental toxin TCDD has a high toxicity in animal and human tissues. Taurine is an amino acid found in organ cells that has and antioxidant properties and anti-inflammatory. As a result, the potential preventive effect of taurine on oxidative stress and organ damage caused by TCDD was investigated in rat liver and kidney tissues by measuring glutathione (GSH), superoxide dismutase (SOD) activity, and thiobarbituric acid reactive substances (TBARS) levels. Material and Method: Adult male Wistar rats (250-300 g, 12-13 weeks, n = 32) were randomly allocted into four groups (n = 8/group): Control, TCDD, TAU, and TCDD+TAU. TCDD and/or taurine were administered via gavage in doses of 2 μg/kg/week and 200 mg/kg/day, respectively. Result and Discussion: The results showed that TCDD caused oxidative stress in the liver and kidney tissues of rats by decreasing the levels of GSH and SOD activity and increasing the levels of TBARS. Taurine treatment significantly reduced TBARS levels (p