Greece’s health system has faced mounting strain from ageing populations, chronic diseases, financial pressures, and shocks like COVID-19 and climate change, which have exposed deep structural weaknesses. Although multiple reforms have aimed to improve funding, service delivery, and public health, progress has been undermined by fragmented policies, poor planning, and weak monitoring. True sustainability and resilience require not just reforms but also evidence-based policymaking, strong institutions, political commitment, and effective coordination to ensure implementation and long-term impact.