The Defense Information School (DINFOS) is a United States Department of Defense (DoD) school located at Fort George G. Meade, Maryland. DINFOS fulfills the Department of Defense's need for an internal corps of professional journalists, broadcasters, and public affairs professionals. Members from all branches of the U.S. military, DoD civilians and international military personnel attend DINFOS for training in public affairs, print journalism, photojournalism, photography, television and radio broadcasting, lithography, equipment maintenance and various forms of multimedia. Since 1995, DINFOS is accredited by the Council on Occupational Education. The American Council on Education recommends college credit for most DINFOS courses.

Fort George G. Meade is a United States Army installation located in Maryland, that includes the Defense Information School, the Defense Media Activity, the United States Army Field Band, and the headquarters of United States Cyber Command, the National Security Agency, the Defense Courier Service, Defense Information Systems Agency headquarters, and the U.S. Navy's Cryptologic Warfare Group Six. It is named for George G. Meade, a Union general from the U.S. Civil War, who served as commander of the Army of the Potomac. The fort's smaller census-designated place includes support facilities such as schools, housing, and the offices of the Military Intelligence Civilian Excepted Career Program (MICECP).