General Gregory S. Martin (born April 24, 1948) was a U.S. Air Force general and Commander, Air Force Materiel Command at Wright-Patterson Air Force Base, Ohio. Martin was a command pilot with more than 4,600 flying hours in various aircraft, including the F-4, F-15, C-20 and C-21. Upon retirement in 2005, Martin took a position consulting for Northrop Grumman and also served on an Air Force panel studying stealth aircraft technology, among other Pentagon and private industry roles.