Abstract Occupational engagement has been conflated with other concepts, such as participation, active occupational performance, and therapeutic engagement. This critical review will discuss occupational engagement as a unique concept that describes a form of involvement in doing that does not require performance and foregrounds the subjective-affective and cognitive experiences of doing. We present some attributes of occupational engagement and the implications for the lack of clarity of this concept within the literature. The difference between occupational engagement and therapeutic engagement is discussed by comparing the foundational tenets of the Model of Human Occupation (MOHO) and the Canadian Model of Occupational Performance and Engagement (CMOP-E). Through one illustrative narrative, we discuss how occupational engagement can be understood as a phenomenon that is not performance-dependent and has different levels of engagement. To conclude, we point out some assumptions about occupational engagement that can inform occupational therapy research and practice.