Given the vast amount of time people spend communicating at work, relationships naturally develop. In addition, friends or romantic partners sometime become coworkers. These interpersonal relationships involve work and life dimensions. We refer to them as personal workplace relationships: voluntary, informal, mutual, and consensual relationships between two members of the same organization that are marked by a strong emotional component and the partners' knowing and communicating with each other as whole, unique persons. In this review, we summarize research examining these relationships. Specifically, studies of workplace peers, workplace friendships, and workplace romances are reviewed. In doing so, we highlight key research and theoretical perspectives from various disciplines. The review concludes with a discussion and recommendations for future research.