This essay deals with regime-boosting regionalism as an empirical phenomenon and as an academic concept. In the next two sections, I present the origins and logic of regime-boosting—a concept I coined in the early 2000s to make sense of how political actors in Africa employed a variety of discursive, symbolic, and ceremonial regionalist practices to strengthen the status, legitimacy and survival of their ruling political regimes domestically and internationally. Thereafter, I discuss the evolution and development of the regime-boosting approach and how it has diffused to several other debates within the broader field of Comparative Regionalism. I conclude with reflections about the future study of regime-boosting.