Background: Mental health literacy among adolescents is crucial for the early recognition, management, and prevention of mental health issues. This study aimed to explore the knowledge, attitudes, and beliefs regarding mental health literacy among adolescents to identify gaps and inform targeted interventions. 
Methods: This qualitative study utilized semi-structured interviews to collect data from 29 adolescents aged 13-18 in Richmond Hill, Ontario, and was conducted between April and July 2023. Participants were selected through purposive sampling to ensure diversity. Data analysis was performed using NVivo software, and thematic analysis was employed to identify key themes and subthemes. 
Results: The analysis revealed three main themes: Knowledge, attitudes, and beliefs. The knowledge theme included categories, such as understanding of mental health, awareness of services, recognition of symptoms, sources of information, misconceptions, and mental health Education. The attitudes theme comprised stigma and stereotypes, willingness to seek help, perception of peer attitudes, the influence of media, role of family, and impact of cultural beliefs. The beliefs theme covered the causes of mental health issues, consequences of mental health issues, self-efficacy in managing mental health, effectiveness of treatment, and the role of community support. 
Conclusion: This study highlights the need for comprehensive and culturally sensitive mental health education programs to address misconceptions, reduce stigma, and enhance support systems. By fostering a supportive environment within families, schools, and communities, adolescents’ mental health literacy can be improved, promoting better mental health outcomes.