Introduction: Chile has implemented a National Suicide Prevention Program since 2007 to reduce the suicide mortality rate among its resident population. Suicide prevention in young people is one of the most important objectives defined at the beginning of this public policy. Fifteen years later after its implementation, it is essential to update the program and its components, considering the contributions of all sectors of society in the process. Considering that youth voices are often not included in public policies formulation, a particular concern is the direct representation of youth. Methods: A participatory process, including citizen discussion forums and workshops with representatives of the Youth Advisory Council of the National Youth Health Program, led by the Ministry of Health, involving collaboration between stakeholders and decision-makers to provide recommendations to improve suicide prevention public policy. The contributions were systematized and analyzed through thematic analysis. Results: Approximately 550 people participated in 21 participatory activities: 18 citizen discussion forums, of which 16 were at a regional level and two at the national level, and three workshops with the Youth Advisory Council. Except for the workshops, little direct youth participation was obtained, although youth-related organizations participated. The aspect of the National Suicide Prevention Program most valued by the participants was advances in collaboration between health and education, which translated into greater preventive capacities in schools. The main issues that should be addressed in the new strategy are the relevance of formalizing opportunities for youth participation in decision-making at the community level and favoring prevention through digital media and social networks. Another highlighted aspect is the reduced offer of support networks and appropriate services for youth and how to address the specificity of specific groups, such as indigenous people, LGBTQ+, and migrants, among others. Finally, the line of work in education must be consolidated by incorporating preventive measures into higher education. Discussion: Although the youth population is prioritized within national suicide prevention strategies, their direct participation in decision-making is rarely considered. The Chilean experience shows an effort to include their voices in the design of public policy. The direct participation of young people allows the development of relevant strategies and maximizes the chances of success in their implementation.