William Crawford Gorgas KCMG was a United States Army physician and 22nd Surgeon General of the U.S. Army (1914–1918). He is best known for his work in Florida, Havana and at the Panama Canal in abating the transmission of yellow fever and malaria by controlling the mosquitoes that carry these diseases, for which he used the discoverments made by the cuban doctor Carlos J. Finlay. At first, Finlay's strategy was greeted with considerable skepticism and opposition to such hygiene measures. However, the measures Gorgas put into practice as the head of the Panama Canal Zone Sanitation Commission saved thousands of lives and contributed to the success of the Canal's construction.

The Surgeon General of the United States Army is the senior-most officer of the U.S. Army Medical Department (AMEDD). By policy, the Surgeon General (TSG) serves as Commanding General, U.S. Army Medical Command (MEDCOM) as well as head of the AMEDD. The surgeon general's office and staff are known as the Office of the Surgeon General (OTSG) and are located in Falls Church, Virginia.