Inspired by recent advancements in evaluation capacity building (ECB), we developed an issue of New Directions for Evaluation to respond to the call to action made by fellow researchers and practitioners to leverage evaluation to expand upon our understanding of meaningful ECB and share practical lessons learned. The resulting issue brought practitioners and scholars together to reflect on and share their contributions to knowledge around the evaluation of ECB as they pertain to research, theory, methodological approaches, and practical applications. This epilog highlights key themes and practical lessons that can support others in their approaches to ECB evaluation. As this issue aims to continue, and in some cases kick‐start, conversations about the evaluation of ECB, future directions for research and practice are explored. We conclude with a call to action, urging those engaging in ECB to plan to evaluate their important initiatives and share relevant findings to others in the field.