This document provides an overview of the Campbell Collaboration policy regarding the use of network meta‐analysis methods in systematic reviews of intervention effects. In addition, this policy briefing note aims to provide the reader with an understanding of what network meta‐analysis is, when network meta‐analysis might be useful, and the core concepts of the method. References to useful resources, including software, are also provided. This policy‐briefing note is not a tutorial on how to conduct a network meta‐analysis and does not provide an exhaustive treatment of all aspects of the method.