Charls Walker (born 1923) was the Under Secretary of the United States Department of the Treasury during the time David M. Kennedy was Secretary of the Treasury. Later after Kennedy left the position of Secretary of the Treasury Walker served as Deputy Secretary of the Treasury under John Connolly.
Walker received his bachelors and MBA degrees from the University of Texas at Austin. He received a Ph.D. in economics from the Wharton School of the University of Pennsylvania in 1955. He then was a professor for a time at the University of Texas at Austin. He then worked as an economist with the Federal Reserve Bank of Philadelphia and as an executive with Republic National Bank of Dallas. In 1961 he became Executive Vice President of the American Bankers Association, a position he retained until 1969.
After leaving the Nixon administration Walker established a consulting firm. He has also taught at the Wharton School, Georgetown University, Texas A&M University and Emory University. He later served as senior advisor to the Center for Deliberate Polling which has dual connections to the University of Texas and Stanford University.
Walker married Harmolyn Hart in 1949.