ABSTRACT In the present work, effect of Low Plasticity Burnishing (LPB) parameters in improving surface roughness of 316L Stainless Steel and Ti-6Al-4V have been investigated. Full factorial design of experiment (DOE) have been used to visualize the effect of LPB process parameters such as speed, pressure, ball diameter and number of passes on surface roughness. The signal-to-noise (S/N) ratio and ANOVA was carried out to identify the significant LPB parameters. The percentage improvement in surface roughness is found to be 87 % and 85 % for Ti-6Al-4V and 316L Stainless Steel respectively. Empirical relations have been developed for LPB parameters and the surface roughness