Abstract: The seed oil of Abroma augusta Linn., extracted with n-hexane, was studied for chemical composition. The fatty acid composition of the oil was determined using Gas Chromatography-Mass Spectrometric (GCMS) technique. Out of six identified fatty acids, four were saturated (66.6%) and two were unsaturated (33.3%). The structures of various fatty acids were confirmed on the basis of comparison with those reported in literature.