Chemical constituents of ethanol and hexane extracts of Uriginea maritima (L.) (liliaceae Family) was studied by gas chromatography-mass spectrometry and their relative concentrations were determined. Both extracts contained 14 expected compounds . There were twelve compounds in hexane extract namely: palmitate Ethyl (10.28%), Ethyldocosanoat (2.46%), Ethyl Oleate (28.10%), Methyl- 2-methylundecanoate (1.27%), 9,12-Octadecadienoic acid (8.75%), Tridecanol, 2-ethyl-2-methyl (5.13%), 2,2,3,3-Tetramethylbutanoic acid (1.53%), Heptadecane (8.38%), Eicosane (22.52%), 2,6,10,15-Tetra methylheptadecane (6.74%), 2,6-dimethyl-1,5-heptadiene (0.82%), 2,2-Dimethylbutane (4.2%). While two compounds were found in ethanol extract namely: 5-Ethyl-4-methyl-3-heptanone (92.30%), methyl pentyl carbonate (7.70%). Diffusion method was employed to investigate the antibacterial activities of the plant extract against three pathogenic bacteria. Significant differences in the antibacterial activity of plant extracts were noticed depending on the used bacterial strain and the concentration of plant extracts.