Mark Gregory Hambley (born February 12, 1948 in Boise, Idaho) is an American diplomat. During 32 years in the U.S. diplomatic service, Hon. Mark G Hambley served in fourteen different postings, many of them in Middle Eastern countries, including as U.S. Ambassador in Qatar and, later, in Lebanon and as the U.S. Consul General in Alexandria, Egypt, and in Jeddah, Saudi Arabia. Hambley was also posted in Saudi Arabia during the November 1979 Grand Mosque seizure. Other assignments took him to Vietnam, Yemen, Jordan, Tunisia and Libya during periods of war, coups, and civil unrest.