Kidney cancer management has become increasingly complex with the diversification of treatment options and the integration of multidisciplinary care. To meet these challenges, the UroCCR network was established in France as a national registry and research platform dedicated to renal cancer. Funded by the French National Cancer Institute (INCa), UroCCR prospectively collects comprehensive real-world data on patient care and disease evolution, while systematically linking these records with annotated biological samples (plasma, urine, and both healthy and tumour tissues). For each case, more than one thousand variables may be recorded, covering clinical, imaging, and patient-reported information. More than a registry, UroCCR is a collaborative network of clinical and research professionals using a shared, evolving tool that supports rapid implementation of studies and fosters active knowledge generation. Unlike retrospective registries or sample-centred biobanks, UroCCR offers prospective, patient-focused inclusion and a wide scope of investigation-from translational and technological research to clinical evaluation and social sciences. It also supports multiple ancillary studies, including retrospective analyses and prospective clinical or observational trials, and operates under a structured governance system with recognised national and international labels. By combining a rigorously structured, multicentre dataset with linkage to the French national health data system (SNDS), the platform uniquely unites detailed clinical annotation with population-wide coverage, creating a high-value environment for advancing kidney cancer research and care.