This article approaches the field of global health governance from the vantage point of shared discourses and norms on the good governance of governance amongst multiple international organizations (IOs). Conceptually, we introduce metagovernance norms as constitutive, reflexive beliefs concerned with institutional order and IO interactions in a given governance field. We argue that such norms are entangled with causal beliefs and problem perceptions that form part of contingent, contested repertoires of knowledge. Moreover, we illustrate how IO 'expert' groups form an authoritative subject position from which truth claims about governance are advanced. Empirically, we trace metagovernance norms in discourse(s) amongst eight health IOs since the 1970s. We show how metagovernance norms have been The research presented in this article was conducted by members of the Research Group 'Governance for Global Health' which is jointly funded by WZB Berlin Social Science Center and Freie Universit€ at Berlin through the German Research Council's (DFG) Excellence Initiative. An earlier version of the manuscript was presented at the 11 th Pan-European Conference on International Relations The Politics of International Studies in an Age of Crises in Barcelona 2017. The authors wish to thank Lisbeth Zimmermann, Katharina Glaab, Alejandro Esguerra and the other participants in the 4 th European Workshops in International Studies (EWIS) workshop on The Politicisation of Expertise: Contentious Knowledge Politics in International Organizations in Cardiff 2017 for providing helpful comments on an earlier version of the manuscript. We thank our colleagues from the WZB Global Governance unit for their feedback and ideas on the larger research project in which this article's arguments are embedded. We are grateful to the three anonymous reviewers for their valuable comments and suggestions which helped improve and clarify our article. Finally, we wish to thank Markus Sperl, Marleen Boschen and Martha van Bakel for their editing and research assistance.