Lyles (born April 20, 1946) is a former United States Air Force general, Vice Chief of Staff of the United States Air Force, and Commander, Air Force Materiel Command, Wright-Patterson Air Force Base, Ohio.
After retirement from the Air Force in 2003, he became a company director for General Dynamics, DPL Inc., KBR Incorporated, Precision Castparts Corp., MTC Technologies, Battelle Memorial Institute and USAA.
Lyles is also a Trustee of Analytic Services and a Managing Partner of Four Seasons Ventures, LLC.