The Columbia University School of International and Public Affairs (SIPA) is the international affairs and public policy school of Columbia University, a private Ivy League university located in Morningside Heights, Manhattan, New York City. SIPA offers Master of International Affairs (MIA) and Master of Public Administration (MPA) degrees in a range of fields, as well as the Executive MPA and PhD program in Sustainable Development.

SIPA's alumni include former heads of state, business leaders, journalists, diplomats, and elected representatives. Half of SIPA's nearly 1,400 students are international, coming from over 100 countries. SIPA has more than 70 full-time faculty, many of which include the world's leading scholars on international relations.