--- - |2 This paper draws on extant literature to identify five dimensions that are deployed by a wide range of social groups to claim and achieve authenticity in variety of social settings: being honest or real, forgoing external rewards or compensation, coming from or living in the right place or time, embodying or participating in something, and consuming correctly. We then demonstrate the utility of these five dimensions of authenticity in action by applying them to two different qualitative studies of countercultural Christians. Our analysis of these data shows that different communities have different understandings of what makes one authentic, but the five dimensions that we outline in this article make comparisons across different groups possible. - 'Symbolic Interaction, Volume 42, Issue 3, Page 374-394, August 2019. '