There is an urgent need to improve rehabilitative care by implementing evidence-based practice and de-implementing sub-optimal practice. LeaRRn serves as a hub for Learning Health System (LHS) research collaboration in rehabilitation. Taken together, the knowledge repository, investigative experience, collaborations and evidence generated by LeaRRn will train the next generation of LHS rehabilitation researchers and transform the delivery, quality and outcomes across the broad field of rehabilitation care. Visit our website to learn more about our programs, funding opportunities, and resources. sites.brown.edu/learrn