Abstract Background The HEROES (HEalth woRkfOrcE to meet health challengeS) Joint Action aims to advance health workforce planning across the EU, addressing the pressing need for a resilient, sustainable, and accessible health service systems. Given the evident strain on health systems demonstrated during the COVID-19 pandemic, this initiative seeks to address the critical need for strategic HWF planning. Building on previous projects, HEROES will foster the capacity of EU states in workforce planning, preparing the health systems to meet future challenges. Methods The study adopts a collaborative framework involving 19 EU countries, segmented into clusters based on health system characteristics. A stepwise approach (‘AS IS,’ ‘TO BE,’ ‘TO DO’) characterizes the methodology, incorporating extensive data collection, stakeholder engagement, and scenario forecasting. Country-level information on HWF Data and Planning will be compared both across countries in clusters and across clusters. Results Initial findings indicate significant disparities in health workforce data quality, availability, and planning methodologies among the states. Identified methodologies also involve real-world data applications and predictive analytics to refine health workforce planning. Efforts are underway to define an Advanced Minimum Dataset (AMDS) to synchronize health workforce data and define planning tools across the clusters, as country-level AS IS reports have been finalized and cross-country comparisons are ongoing. Conclusions Collaborative, data-driven health workforce planning can significantly enhance health system resilience and responsiveness. Recommended public health actions include enhancing HWF data integration, forecasting capabilities, and stakeholder participation, with the aim of shaping national health policies and practices. The public health impact is profound, as it allows to improve health service delivery and workforce adaptability in response to dynamic health demands. Key messages • The HEROES Joint Action advances EU health workforce planning, with the aim of enhancing the resilience and responsiveness of health systems. • Strategic data-driven approaches in health workforce planning are pivotal for resilient, accessible and sustainable healthcare systems.