Klaus Fuest (born 1965) is Principal of the Roland Berger Institute (RBI), the Roland Berger think tank.

After training as a bookseller and studying business administration, initial career steps in Germany and abroad culminated in a position as managing director of a midsized IT company. He joined Roland Berger in 2001.

He has led the company's Research unit since 2003, adding Global Knowledge Management in 2007 together with all non-consulting services relating to the production, preparation and communication of key knowledge and content. Supporting Roland Berger's top management is a focus of what he does.

Klaus Fuest has authored and co-authored numerous studies, books and other publications. He concerns himself with economic and industry policy issues, with a strong focus on digitization and on how technological and socioeconomic developments impact corporate strategies.

He is married, has four children and lives in Düsseldorf.