Peter Gray
Peter Gray may refer to:
- Peter Gray (Australian judge), Australian federal judge
- Peter W. Gray, American lawyer, judge, and legislator from Texas
- Peter Gray (bioengineer), bioengineer in Australia
- Peter Gray (chemist), professor of physical chemistry at the University of Leeds
- Peter Gray (historian, born 1965), professor of modern Irish history at Queen's University Belfast
- Peter Gray (military historian), military historian at Birmingham University
- Peter Gray (psychologist), American psychologist and author of the introductory psychology textbook, Psychology
- Peter Gray (sailor), Irish Olympic sailor
- Peter Gray (writer), Scottish writer
- Peter S. Gray, Olympic equestrian for Bermuda and Canada
- Pete Gray, one-armed Major League baseball player
- Pete Gray (activist), Australian environmental and anti-war activist
- "Peter Gray" (song), American ballad