Stephen Randolph Lorenz (born October 17, 1951), is a retired United States Air Force four-star general who currently serves as president and chief executive officer of the United States Air Force Academy Endowment. His last military assignment was as the 29th Commander, Air Education and Training Command (AETC), Randolph Air Force Base, Texas. As commander, he was responsible for the recruiting, training and education of all US Airmen. His command included the Air Force Recruiting Service, two numbered air forces and Air University. Air Education and Training Command consists of 13 bases, more than 92,000 active duty, reserve, guard, civilians and contractors, and 1,750 trainer, fighter and mobility aircraft.