This study aims to evaluate the antibacterial activity of Oroxylum indicum (OI) extracts (extracts of stem bark, leaves, root, and wood trunk) against Staphylococcus aureus ATCC 6538, Listeria innocua ATCC 33090, Bacillus cereus ATCC ® 10876TM, Escherichia coli ATCC ® 25922TM, Salmonella typhimunum ATCC ® 13311TM và Pseudomonas aeruginosa ATCC 27855.