Marianna Kudlyak is a macroeconomist with a research focus on labor markets and consumer finance. She is research advisor (economist and bank officer) at the Federal Reserve Bank of San Francisco. She is also a research fellow at the Center for Economic and Policy Research and, starting in September 2021, a visiting fellow at the Hoover Institution at Stanford University.

Kudlyak has been with the Federal Reserve Bank of San Francisco since May 2016. Previously, from August 2008, she worked as an economist at the Federal Reserve Bank of Richmond. She was also a visiting scholar at the University of California–Berkeley, the University of Texas–Austin, the University of Montreal, and the Federal Reserve Bank of St Louis.

Kudlyak has conducted research on unemployment, non-employment, wages, online job searches, mortgage default, young borrowers, and inequality. Kudlyak and her coauthors have developed the Hornstein-Kudlyak-Lange Non-Employment Index, an alternative measure of resource utilization in the labor market, which is updated monthly and posted publicly via the St. Louis FRED database. She has published numerous articles in academic journals and Federal Reserve publications. Kudlyak is ranked in the top 5 percent of economists worldwide (over the last ten years of publications) by IDEAS/RePEc.

Kudlyak received a PhD and MA in economics from the University of Rochester. Her research advisor is Mark Bils.