The AAA Northern Region was one of the four AAA regions in the Virginia High School League. It was made up of four districts: the AAA Concorde District, the AAA Liberty District, the AAA National District, and the AAA Patriot District. Group AAA is the largest enrollment class for VHSL schools, and typically AAA is the most competitive level. In 2013, the three classification format was eliminated in favor of a six classification system. Accordingly, the Northern Region was eliminated, while the districts were retained for regular season competition.
The Northern Region comprises most of the public schools in Northern Virginia, including all the public high schools in Fairfax County, Arlington County, Alexandria City, and one high school in Loudoun County. The region is also the smallest geographically of all the A, AA, and AAA VHSL regions, where boundaries have remained within the outer limits of Fairfax County for most of its history.