Background: Mental health disorders represent one of the leading causes of disability worldwide. Despite growing recognition of mental health challenges, a significant proportion of individuals experiencing psychological distress do not seek professional help. Mental health awareness and help-seeking behavior are critical components of effective mental healthcare systems. Objective: This study aims to examine the relationship between mental health awareness and help-seeking behavior, identify barriers influencing treatment utilization, and explore interventions that improve mental health literacy and healthcare engagement. Methods: A narrative review was conducted using peer-reviewed literature published between 2015 and 2025. Databases including PubMed, Scopus, Web of Science, PsycINFO, WHO reports, and governmental health publications were searched. Studies investigating mental health literacy, stigma, healthcare utilization, and intervention effectiveness were included. Results: The review found that mental health literacy significantly influences help-seeking behavior. Major barriers include stigma, lack of awareness, financial constraints, cultural beliefs, limited service availability, and fear of discrimination. Digital mental health interventions, educational campaigns, and community outreach programs demonstrated positive impacts on awareness and treatment-seeking behavior. Conclusion: Improving mental health awareness is essential for increasing help-seeking behavior and reducing the burden of mental illness. Multi-level interventions involving education, healthcare systems, policy reforms, and community engagement are necessary to promote equitable access to mental health services.