Mark M. Zandi (born 1959) is an Iranian-American economist who is the chief economist of Moody’s Analytics, where he directs economic research.

Zandi’s research interests encompass macroeconomics, financial markets and public policy. He analyzes the economic impact of government spending policies and monetary policy response. A trusted advisor to policy makers, he has testified before Congress on the economic outlook, the nation’s fiscal challenges, fiscal stimulus and financial regulatory reform. Zandi also publishes on mortgage finance reform and the determinants of foreclosure and personal bankruptcy. He was one of the first economists to warn of the financial crisis of 2008 in 2005.