<p>The effect of fiber modification with optimized 6% NaOH treatment and matrix modification with TiO₂ nano particles in various proportions on mechanical characteristics of kenaf fiber reinforced epoxy composites (KFRC) were assessed experimentally and reported in this article. The matrix modification phase focuses on the addition of nano TiO₂ with epoxy matrix in 8 different proportions from 0.5 wt% to 4 wt% in 0.5 wt% interval. Composite samples were fabricated using hand layup process and two step curing namely primary curing under dead weight and secondary curing in compression molding machine. Test samples are prepared from the composite for mechanical characteristics study in accordance with ASTM standards. The combined effect of fiber modification with 6% NaOH treatment and matrix modification with 3% TiO₂ nano particle recorded best results for KFRC such as 58.66&#xa0;MPa in tensile strength, 48.52&#xa0;MPa in flexural strength, 18.87&#xa0;J in impact strength, and 84.51 in shore D hardness. The combined fiber/matrix modification increased tensile strength, flexural strength, impact strength, and shore D hardness by 57.6%, 44%, 116.9%, and 22.8%, respectively. This strength enhanced kenaf fiber reinforced epoxy composite can be suitable for the light load structural applications in automotive, aerospace and home appliances industries.</p>