Organizations continue to be challenged and enriched by the diversity of their workforces. Scholars are increasingly focusing on inclusion to enhance work environments by offering support for a diverse workforce. This article reviews and synthesizes the inclusion literature and provides a model of inclusion that integrates existing literature to offer greater clarity, as well as suggestions for moving the literature forward. We review the inclusion literature consisting of the various foci (work group, organization, leader, organizational practices, and climate) and associated definitions and how it has developed. We then describe themes in the inclusion literature and propose a model of inclusion. Finally, we end by discussing theoretical and practical implications. •Inclusion is defined and differentiated from diversity.•Inclusion constructs reviewed are work group, leader, climate, organizational, and practices.•A model of organization inclusion is presented, building on the inclusion literature.