<p>Lapping and superfinishing treatments were adopted to enhance the corrosion performance of electron beam powder bed fusion (EB-PBF)–Ti6Al4V alloys, and the results were compared with those of the wrought counterparts. The effect of the lapping and superfinishing on the electrochemical behaviour of the samples was scrutinized in a phosphate-buffered saline (PBS) + H₂O₂ solution with and without bovine serum albumin (BSA) employing potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Profilometer data revealed an impressive 80% and 95% reduction in surface roughness for lapping and superfinishing, respectively, compared to the grinding process. Following a wettability test, smoother surfaces exhibited increased hydrophilicity, with contact angles for the wrought samples ranging from 73.13° (lapped) to 87.59° (grinded) and for the EB-PBF–Ti6Al4V samples from 72.87° (superfinished) to 89.15° (grinded). The electrochemical findings indicated that EB-PBF–Ti6Al4V alloys manifest higher corrosion resistance relative to wrought counterparts, owing to an increased presence of the β phase in the microstructure. Considering that the EB-PBF samples were optimized from the corrosion point of view, tribocorrosion tests were focused on them. Lapping and superfinishing treatments significantly bolstered bio-tribocorrosion resistance of EB-PBF–Ti6Al4V specimens, leading to a noteworthy 50% positive shift in the corrosion potential of EB-PBF–Ti6Al4V alloy during bio-tribocorrosion testing. Although BSA demonstrated a corrosion-mitigating effect in all conditions, its impact on tribocorrosion properties was negligible.</p>