Who am I? Who are you? Who are we? These are some of the fundamental questions that identity scholars have grappled with since the 1900s when researchers across multiple disciplines first began to theorize about the self, identity, and identification. While the benefits and consequences of singular identities has been largely studied, recent scholars have argued for the importance of multiple identity research, as multiple identities have become increasingly salient to individuals due to societal and organizational changes including globalization and technological advancements. An important phenomenon within multiple identity research is dual identification, of which I explore a specific type– identification with both one's organization and one's profession. Using a three-study, quantitative design spanning two industries, I studied the effects of dual identification and identity conflict on individual psychological outcomes, turnover intentions, and OCB engagement. Findings from these three studies, holistically, indicate that when individuals experience identity conflict between their organizational and professional identities, they experience negative outcomes. These negative outcomes – increased emotional exhaustion, psychological distress, and turnover intentions, in addition to reduced OCB engagement – have important ramifications for the individuals themselves and their organization. However, post-hoc results indicate that dual identification – through the main effects of …