There is a growing social consciousness in America and a revival of using social movements as a vehicle for social change—with increasing nonprofit involvement and philanthropic funding support. Since the mid-2000’s there have been several notable movements that have taken hold of the public consciousness: the immigration reform movement and DREAMers, The Occupy Movement, Gay Marriage, climate change movement, Black Lives Matter, and a nascent, potential movement developing in protest of the Trump Administration. While evaluating movements has some parallels to established evaluation practice, it also represents some thorny challenges. In a session presented at the American Evaluation Association Conference on November 10, 2017, we explore and share what we are learning about evaluating social movements, including: what we know about social movements, their components, characteristics, and types; what aspects of social movements are ripe for evaluation; and what existing evaluation approaches are well suited to evaluating social movements.