The Rockefeller Foundation's Joint Learning Network (JLN) aims to support universal health coverage (UHC) in low- and middle-income countries by facilitating knowledge sharing and collaboration among practitioners. Launched in 2010, the JLN has grown significantly, enhancing country engagement and adapting its resources to meet specific learning needs, while also encountering challenges such as varying levels of participation and underutilization of funding resources. Key lessons learned emphasize the importance of collaborative learning, strong institutional engagement, targeted technical assistance, and the need for sustained funding to ensure the JLN's long-term effectiveness and impact.