If loyalty has the potential to make us happy whether we are a friend, a co-worker, customer or citizen, how can we recognize loyalty? The extant literature in psychology, marketing, philosophy, organizational behavior, and law point to commonalities and differences across disciplines with regards to the meaning of loyalty. Therefore, it is important to establish a clear understanding of how loyalty has been examined and defined in prior literature and explore perspectives on how different loyalties in our lives relate to one another. The scientific literature contains a vast variety of definitions of loyalty