Mark Weisbrot (b. 1954, Chicago) is an American economist and co-director of the Center for Economic and Policy Research in Washington, D.C. He received his Ph.D. in economics from the University of Michigan. He has written numerous research papers on economic policy, and is co-author, with Dean Baker, of Social Security: The Phony Crisis (University of Chicago Press, 2000), a refutation of prevailing wisdom on reform of the Social Security system in the United States. He has written extensively about the economies of developing countries, with special attention to Venezuela and other Latin American nations.

Weisbrot writes a column on economic and policy issues that is distributed nationwide by McClatchy-Tribune Information Services. His opinion pieces have appeared in the Washington Post, the Los Angeles Times, the Boston Globe, and other major U.S. newspapers. He appears regularly on national and local television and radio programs, including CNN, the The NewsHour with Jim Lehrer, National Public Radio and C-SPAN.

Weisbrot has several times contributed testimony to Congressional hearings, in 2002 to a House of Representatives committee, on Argentina's 1999 - 2002 economic crisis and in 2004 to the US Senate Foreign Relations Committee, on the state of democracy in Venezuela, and on media representation of Hugo Chávez and of Chávez's Venezuela. Weisbrot is also the President of Just Foreign Policy, a non-governmental organization dedicated to reforming United States foreign policy.