This article offers a sociological account of how we might analyse the relationship between contemporary practices and discourses of secrecy on the one hand and those of transparency on the other. While secrecy is often framed in popular and political discourses as the antithesis of transparency, in reality their relationship is more complex and co-constitutive than may initially appear. The article argues that understanding the interface between secrecy and transparency as a socially embedded dynamic can offer public relations scholarship productive avenues for both theoretically-oriented research and empirical studies. In its role in the management of the secrecy−transparency dynamic, PR plays a significant role in actively creating social relations. This article aims to provide resources for assessing the strength of this dynamic in acting to structure social, political and economic relations, and offers new perspectives on how techniques employed to manage the secrecy−transparency dynamic – including public relations – are both embedded in such relations and act to shape them.