Hybrid organizations harbor different and often conflicting institutional logics, thus facing the challenge of sustaining their hybridity. Crucial to overcoming this challenge is the identification process of organizational actors. We propose a theorization of how power relations affect this process. More specifically, we argue that an actor’s power influences her own professional identity: an increase [decrease] in her power, via the heightened [diminished] control that this power provides her over organizational discourse, boosts [threatens] her identity. Our theorization has implications for the longevity of a newly adopted logic within an organization. If the new logic modifies incumbent power relations, the identities of (formerly and newly) powerful individuals are influenced, which may lead these individuals to promote or resist the new logic, thereby affecting the odds that the logic will survive within the organization. We illustrate our theorization with a case study in a professional service firm. Our study contributes to nascent research on hybrid organizations by emphasizing the role of power and agency in the longevity of hybridity.