Graphene oxide (GO) is a desirable nanoparticle for strengthening composite material owing to its outstanding mechanical characteristics. This research examines the influence of graphene oxide (GO) on the mechanical characteristics of Engineered Cementitious Composites (ECCs), including their mechanical performance under tension and compression conditions. In this study, GO was utilized with different percentages like 0 . 0.02 , 0.04 , 0.05 , 0.06 , 0.08 and 0.10 by the weight of cement for determining the compressive strength, direct tensile strength and modulus of elasticity of ECC mixture. However, the dry density is improving as the content of GO increases while the water absorption is getting reduced blended with GO as nanomaterials rises in the ECC mixture after 28 days correspondingly. It has been observed that the use of GO as nanomaterial up to 0.08 in ECC mixture is providing optimum compressive strength, tensile strength and modulus of elasticity after 28 days respectively. The increased composite strength as well as the chemical connection formed by the introduction of GO between the polyvinyl alcohol (PVA) fiber and the cement matrix are both responsible for the excellent mechanical characteristics of the GO-reinforced ECC mixture. © 2023