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Hoslundia opposita Vahl is a multi-purpose medicinal plant used traditionally to treat gonorrhea, cystitis, cough, fever, snake bites, convulsion in many parts of Africa. The objectives of this research are to evaluate the phytochemical profile, antioxidant activity of the leaves of Hoslundia opposita Vahl and to dock its phytochemical components with uropathogenic Escherichia coli strain F11(ID:3NRP) and NFeoB from Escherichia coli BL21(ID:5FH9). Harborne’s method was used for the identification of the class of phytochemicals while GC-MS was used to identify the type of phytochemicals. Folin-Ciocalteau method was used to determine the total phenolic content while aluminum colorimetric assay was used to estimate the total flavonoid content. 1, 1-diphenyl-2-picrylhydrazyl (DPPH) was used to evaluate the antioxidant activity. The molecular docking simulation method was used to investigate the interactions of the phytochemicals with the Escherichia coli receptors. In the phytochemical studies, flavonoids, terpenoids, cardiac glycosides and saponins were identified to be present in the methanolic leaf extract while steroids, alkaloids and anthraquinones were absent. The GC-MS analysis of the methanolic extract revealed presence of 17 compounds out of which 14 were identified. The compounds with appreciable quantity in the leaf extract were 1, 2, 3-benzetriol (38.11%), n-hexadacanoic acid (13.52%) and catechol (9.98%). Assessment of the antioxidant activity using DPPH gave a scavenging activity of 79.86% at 500ug/ml compared with ascorbic acid having a scavenging activity of 90.85% at the same concentration. Evaluation of the total …