Psychological ownership (PO) can be an important tool for organizations to encourage productivity and certain desirable employee behaviours. In the organizational literature, PO is the sense of ownership over a “target”: not only physical objects, but a concept, a job, or the whole organization. It can express itself in positive ways, such as higher motivation; but it also has potentially negative effects, such as territoriality. This briefing looks closely at the literature to understand the various dimensions of PO, and how organizations can foster the positive aspects of it to help improve employees’ experiences in the workplace by fostering morale while contributing to productivity. By bringing together the most relevant research on the topic, this briefing also highlights areas that are still underdeveloped, such as collective PO, the role of culture, and the employee perspective.