Alden Winship Clausen, also known as A.W. Clausen (born February 17 1923 in Hamilton, Illinois) is an American banker. He served as President of the World Bank from July 1981 to June 1986.

As a child in Hamilton, Illinois, Tom Clausen aspired to become a “transnational citizen.” He has achieved that goal, visiting 119 nations during his banking and public service career, and exercising his leadership skills to improve the lives of countless individuals around the world.

He entered Bank of America’s executive training program in 1949, and in 1970 was elected president and chief executive officer of BankAmerica Corporation. He led the bank through dramatic growth from 1970 through 1981, then served during the Reagan administration as President of the World Bank. In 1986, he returned to BankAmerica as Chairman and Chief Executive Officer, retiring in 1990.

Mr. Clausen is a graduate of the Advanced Management Program of the Harvard Business School and a recipient of the Harvard Business School Alumni Achievement Award, the Outstanding Achievement Award from the University of Minnesota, the Carthage Distinguished Alumnus Award, and the California Industrialist of the Year Award. He is the recipient of honorary degrees from Carthage, Gonzaga University, Lewis and Clark College, the University of Notre Dame, the University of the Pacific, and the University of Santa Clara. He has been awarded the prestigious University of California–San Francisco Medal and the Carthage College Flame Award. Mr. Clausen has been a trustee or director of numerous educational, foreign policy, or economic organizations; the Walter A. Haas School of Business at the University of California–Berkeley; Carthage College;the University of California–San Francisco Foundation; the Asia Foundation; the Committee for Economic Development; Population Action International; and the International Center for Economic Growth.

Mr. Clausen is immediate past Chairman of the World Affairs Council of Northern California. He is a member of the Bretton Woods Committee and the Korea–U.S. Wiseman Council. He is advisor to the Japan Foundation’s Center for Global Partnership. He has received awards from the governments of Italy, Japan, Senegal, South Korea, Spain, and Venezuela.