Among other responsibilities, youth sport coaches are positioned to monitor and address the mental health needs of their athletes. Despite this, there are limited interventions aimed at improving coaches’ mental health literacy. Using a mixed-methods design, the aim of this pilot study was to evaluate the feasibility, acceptability, and mental health literacy outcomes associated with a brief (75 min) workshop for youth sport coaches. Fourteen coaches (13 males, one female) completed pre- and postworkshop surveys measuring indices of mental health literacy, and 10 of these same participants engaged in a semistructured interview 1-month later. Overall, coaches who participated in the pilot workshop reported significant improvements in depression literacy, intentions to seek self-help for oneself and their athletes, and knowledge and confidence to provide help. In addition, coaches reported positive impressions of the workshop during the follow-up interviews and provided concrete examples of program content application. An important suggestion made by coaches was the need to align the workshop content to governing policy. Taken together, this pilot mental health literacy workshop for youth sport coaches shows strong promise and is ready for large-scale dissemination.