Our objective is to provide reliable Stark broadening data for Sn II spectral lines needed for astrophysics, plasma physics, fusion research, and different plasmas in laboratory and technology. We used the semiclassical perturbation method for the calculation of Stark broadening parameters, full widths at half intensity maximum and shifts for 44 spectral lines of singly charged tin ion (Sn II), for collisions with electrons and protons. The obtained results have been compared with the existing experimental and theoretical results and used to demonstrate the influence of Stark broadening mechanism on spectral lines of Sn II in stellar atmospheres.