<p>A cranial suture serves as the connecting interface between the different parts of skull bones. Prior investigations into suture interface have primarily focused on understanding their role under static loading. The effect of cranial suture in ballistic impact (loading rate &gt; 10² s^-1) is unknown, especially for fragment impact, where the effects are deemed to be highly dynamic and localized. Towards this end, using novel experiments, we have investigated the role of cranial suture simulant on the response of the head surrogate under fragment impact. The head surrogate was prepared by assembling rectangular cross-sectioned simulants of major layers of the head (i.e., skin, skull, and brain). The skull simulant incorporated a suture interface in one configuration, while the suture interface was absent in the other configuration. Skin and brain simulants remained consistent in both configurations. Using a pneumatic gas gun setup, a 2.79-g chisel-nosed NATO standardized FSP was impacted on the head surrogate. Results were analyzed in terms of residual velocity, depth of penetration, energy absorbed, and failure pattern. The results suggest that the presence of cranial suture did not significantly alter the aforementioned responses due to the shorter time scale of the event and localized failure.</p>