Background: Obesity, as a chronic disease, is becoming increasingly prevalent especially among women. Objectives: The purpose of this study was to evaluate and compare the effects of resistance training (RT), concurrent resistance training and aerobic training (RT + AT) on visfatin concentrations and body composition in overweight and obese women. Methods: An eight-week pretest-posttest design with two experimental exercising groups and one control group was used. 45 overweight and obese women were randomized into resistance training (RT), concurrent resistance and aerobic training (RT + AT) or an education-only groups (EDU). All participants received a dietary and education/counselling intervention. However, only the RT and RT + AT group participated in the eight-week exercise training. Results: Repeated measures analysis showed that visfatin was significantly decreased by 8.5% in the RT (P = 0.02) and 29.2% in the RT + AT (P < 0.001), but not in EDU (3.7%; P = 0.22). BMI was decreased in the RT (6.8%; P < 0.001), RT + AT (8.1%; P < 0.001) and EDU (4.4%; P < 0.001), while BF% decreased in the RT (6.9%; P = 0.001), RT + AT (13.1%; P= 0.001), and EDU (4.9%; P = 0.020). WHR was decreased in the RT (2.4%; P = 0.001), in the RT + AT (4.2%; P = 0.002) and EDU (2.5%; P = 0.02). VO2max (mL.kg -1 .min -1 ) increased in the RT (16.3%; P =