Background/Objectives: Mental health and suicide prevention are increasingly recognized as critical components of sustainable development in the European Union (EU), particularly in light of the broader mental health challenges highlighted during the COVID-19 pandemic. This review aimed to explore suicide prevention policies and mental health strategies across selected European countries through a focused comparative analysis centered on the Republic of Cyprus. Methods: A narrative review design was applied. A purposive literature search focused on national strategies, epidemiological trends, policy papers, and peer-reviewed articles published from 2000 to January 2026 was followed. Databases searched included PubMed, Scopus, PsychInfo, Embase and Google Scholar, supplemented by grey literature from the World Health Organization (WHO), European Commission, and national health authorities. The review focused on selected European countries, i.e., the United Kingdom, Sweden, Finland, Greece, and the Republic of Cyprus, chosen to illustrate variation in suicide prevention policies, health system structures, and implementation frameworks. Evidence was critically appraised and synthesized thematically to identify commonalities and contrasts in policy, implementation and emerging challenges. Results: The review identified substantial variation in national suicide prevention strategies, monitoring systems, and policy implementation across the selected countries. Persistent gender- and age-related disparities in suicide patterns were observed, alongside the influence of socio-economic determinants, and the broader mental health effects associated with the COVID-19 pandemic. The findings also underscored the need for robust, gender-sensitive, and data-driven national strategies that are contextually grounded and equitably resourced. Conclusions: This review concludes with recommendations for enhancing mental health sustainability across Europe, emphasizing cross-sectoral coordination, improved surveillance systems, and future research priorities.
Karanikola et al. (Mon,) studied this question.