This investigation provides a comparative examination of the mechanical and physical characteristics of cement paste and mortar incorporating banana fibers (BaF). The emphasis is placed on the influence of BaF on physical characteristics like density, total water absorption, and sorptivity, along with mechanical properties, encompassing ultrasonic pulse velocity, compressive strength, and flexural strength. Ten distinct mixtures, containing BaF contents varying from 0 to 2% by volume, were evaluated over a curing duration of 90 days. The findings indicate that incorporating BaF enhances the mechanical properties of cement paste and mortar, leading to improved strength and durability. Furthermore, a rise in water absorption was noted with the incorporation of fibers in both materials. The results emphasize the promise of BaF in improving the performance of cement-based materials, presenting a sustainable and economical alternative for construction uses.