A review of the literature supports the theory that individuals with opioid use disorder (OUD) frequently exhibit impaired skills in executive function (EF) which negatively impact treatment retention and efficacy. EF is a higher-level cognitive process that requires interconnected communication throughout the entire brain to function properly. Current research suggests metacognitive strategy instruction and skill generalization may be effective approaches to cognitive rehabilitation in the OUD population. The purpose of this study was to investigate the effect of a multifaceted EF training program for young people in recovery from OUD.