Belfer Center for Science and International Affairs

The Robert and Renée Belfer Center for Science and International Affairs, also known as the Belfer Center, is a research center located at the Harvard Kennedy School at Harvard University in Cambridge, Massachusetts, in the United States.

From 2017 until his death in October 2022, the center was led by director Ash Carter, former U.S. Secretary of Defense and co-director Eric Rosenbach, a former U.S. Assistant Secretary of Defense. Its current executive director is Natalie Colbert. The current director is Meghan O'Sullivan.