This study investigates how the mechanical and rheological (workability and flowability) properties of the fiber reinforced engineered cementitious composites are affected by different fiber types, fiber contents, and hybrid fiber combinations. Six mixes of engineered cementitious composites were evaluated, including one without fibers and five with polyvinyl alcohol, micro steel, and basalt fibers in different volumetric percentages. Mini slump flow and marsh cone tests were used to assess rheological performance of the engineered cementitious composites mixes, and the results showed that mix 6 exhibited the lowest slump flow value of 18 cm compared to mix 1, which exhibited 27 cm of slump flow; this was because of increased internal friction and water demand of polyvinyl alcohol and basalt fibers, which increased the viscosity of mortar. Mechanical characteristics were evaluated for 7 days and 28 days using compressive strength and flexural strength tests. Mix 5 produced the highest overall compressive and bending strengths of 77.68 MPa and 12.46 MPa at 28 days, respectively, exceeding single fiber reinforced mixes. The enhanced performance of hybrid fibers reinforced mixes was due to the complementary characteristics of the fibers, with micro steel fibers providing stiffness and crack resistance and polyvinyl alcohol fibers contributing ductility and crack bridging. These results demonstrated how hybrid fiber systems can enhance cementitious composites’ mechanical performance while resolving workability limitations, providing useful answers for high-performance concrete applications. These results demonstrated that hybrid fiber systems can improve the strength and durability of engineered cementitious composites, creating the way for future studies into improving fiber synergy, incorporating sustainable fibers, utilizing locally available materials such as limestone powder, and improving workability without sacrificing mechanical performance.