Phytochemical screening and antibacterial activity of Albizzia lebbeck leaves were assessed. Phytochemical screening of Successive extract Albizzia lebbeck leaves shows presence of alkaloids, glycoside, tannins, saponins, flavanoids, and carbohydrates. The Successive ethyl acetate extract Albizzia lebbeck leaves are found inhibitory effect against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa and Bacillus cereus. The extract shows sensitivity for both gram positive and gram negative bacteria with maximum against Pseudomonas aeruginosa and minimum against Escherichia coli.