This study explores the potential of developing sustainable cement using sugarcane bagasse ash (SCBA) as a partial replacement for cement to reduce CO₂ emissions in cement production. The SCBA used was obtained from the controlled burning of sugarcane bagasse at 600 ℃, which provided the material with favorable pozzolanic properties due to its low carbon content and fine particle size. The experiment involved partially replacing Ordinary Portland Cement (OPC) with SCBA at 0% (which is control mix), 5%, 10%, 15%, and 20% by weight, while maintaining a constant water-cement ratio of 0.4. The SCBA was characterized by its physical and chemical properties, showing a fineness of 86.37%, specific gravity of 2.4, X-ray diffraction (XRD) results indicating 79% quartz, and a loss on ignition (LOI) of 5%. The results showed that fresh cement paste properties were affected, with an increase in normal consistency and setting time as SCBA replacement levels increased. Compressive strength, flexural strength, and split tensile strength reached their maximum at the 5% SCBA replacement and decreased at higher replacement ratios. It seems that there is no adverse impact on water absorption when OPC is partially replaced with 5% of SCBA. The findings confirm that partially replacing OPC with SCBA is feasible, helping to decrease OPC usage and reduce the environmental impact associated with cement production.