Plants are natural sources of antioxidants and recent research focuses on them for they are regarded as safe. Free radicals are causes of serious diseases because of the oxidative stress they cause on the body cells which leads to a series of conditions and diseases. There is a serious need of finding natural scavengers against the free radicals to combat the problem of free radicals. This study was carried out to evaluate the antioxidant activity of various extracts of Strobilanthes kunthiana leaves. Superoxide radical scavenging activity, Nitric oxide radical scavenging activity, Fe²⁺ chelating activity, ABTS radical decolorization assays were carried out. Ascorbic acid was used as standard. The half maximal inhibitory concentration values were determined in all the assays and was found to be lower in the ethanol extract; ABTS radical decolorization (60.05±0.04 µg/mL), Fe2⁺ chelating (62.36±0.15 µg/mL), superoxide radical scavenging (IC_{50 =} 62.24±0.26 µg/mL), and nitric oxide radical scavenging (66.27±0.52 µg/mL).Compared to all other extracts, ABTS radical decolorization assay showed better antioxidant activity as compared to other assays. In conclusion, the ethanol extract showed promising antioxidant activities and can be considered for active compound isolation and further analysis.