School-based youth-specific suicide prevention and early intervention initiatives are presently underdeveloped. The current study conducted a pilot evaluation of a multi-modal suicide prevention training program for school-based social workers, ‘Management of Youth Suicidality Training for Schools’ (MYSTS). The program comprised a two-day workshop and six fortnightly post-workshop webinar online consultations. Participants were 36 social workers (years’ experience M = 11.23, SD = 8.29) employed by the Department of Education in Tasmania, Australia. Outcomes were self-rated confidence, competence, and knowledge of self-harm in young people, and attitudes toward suicide prevention and suicide-related behaviors. Exploratory quantitative results indicated significant improvements with large effect sizes for participants’ self-reported competence (d = 1.33), and confidence (d = 1.29) to identify and respond therapeutically to youth suicidality following the workshop. Confidence remained significantly higher than baseline following the online consultations (d = 0.90). Qualitative analysis of online supervision consultations indicated key themes of accessibility, communication and information sharing, and clinical management. Participants endorsed the MYSTS package as well-presented, with relevant topics, and effective learning activities. This study highlights the need for continued supervisory or implementation support to practitioners following suicide prevention training initiatives and suggests web-based teleconference technology as a feasible strategy for this. Further evaluation of the MYSTS package, including a suitable comparison or control condition, is indicated.