Vaughn R. Walker (1944 - ) is the chief judge of the United States District Court for the Northern District of California.

Walker was born in Watseka, Illinois and graduated from the University of Michigan and Stanford Law School. After two years as a law clerk for U.S. District Court for the Central District of California judge Robert J. Kelleher, he served in private practice in San Francisco until his September 7, 1989 nomination by President George H. W. Bush to the federal district court. The Senate confirmed Walker on November 21, 1989. He became chief judge in 2004.

Walker believes in a legal approach known as law and economics.