In this paper, the individual and synergistic effects of silanized-multiwalled carbon nanotubes (S-MWCNTs) and silanized-Titanium dioxide (S-TiO 2 ) nanoparticles on the drop-weight impact response of Kevlar fiber-reinforced epoxy (KE-EP) composites were evaluated. In the first step, the nanofillers were functionalized using an amino organosilane coupling agent (3-Aminopropyltrimetoxysilane [APTMS]). Next, multiscale composites were prepared by adding 0.3 wt% S-MWCNTs, 1 wt% S-TiO 2 , and 0.3 wt% S-MWCNTs + 1 wt% S-TiO 2 in the matrix.The samples were exposed to drop-weight impact at various impact energies of 15, 30, and 45 J. The findings demonstrated that the sample filled with 0.3 wt% S-MWCNTs + 1 wt% S-TiO 2 had the best impact performance, regardless of the initial impact energy. When compared to the neat KE-EP sample, the multiscale composite filled with 0.3 wt% S-MWCNTs + 1 wt% S-TiO 2 had greater peak force and absorbed energy by 23% and 18%, respectively under 45 J impact energy. Analysis of the fracture surfaces illustrated a good interfacial bonding between the Kevlar fibers and matrix for the multiscale composite having hybrid nanofillers. K E Y W O R D Sdrop-weight impact test, fiber-reinforced composite, Kevlar fiber, multiwalled carbon nanotubes, nano-TiO 2