The present invention addresses the technical problem of inventing: a low-cost antibacterial glass which does not cause a problem in appearance if used for a resin molded article, and which has high sustainability of antibacterial activity； and a resin molded article which uses this antibacterial glass. In order to solve the above-mentioned problem, an antibacterial glass according to the present invention is characterized by having a glass composition which contains, in mol%, 40-60% of B2O3, 10-32% of MgO, 0.05-0.5% of Ag2O and 2-10% of Al2O3.
