Canadian Forces Base London (also CFB London) is a former Canadian Forces Base that was located in London, Ontario, Canada. It was downsized and closed during defence budget cutbacks in the 1990s. Local Primary Reserve units were supported by Area Support Unit (ASU) London which was located in some of the remaining base buildings, but they are now supported by ASU Toronto. Much of this support is delivered by a Technical Services Platoon which remains stationed in London.
As the site of the first purpose-built infantry training school erected by the federal government and an early symbol of the establishment of a permanent military force in Canada, Wolseley Hall was designated a National Historic Site of Canada in 1963.
The Wolseley Barracks was established in the 1880s on the outskirts of London when the city traded the John Carling farm property on "Carling Heights" for the downtown Victoria Park, which had been owned and occupied by the military up to that time. Wolseley Barracks became the home of "D" Company of the (Canadian) Infantry School Corps with the completion of Wolseley Hall in 1888. The Infantry School Corps later became The Royal Canadian Regiment. Wolseley Hall was the first structure purposely built by the Canadian Government for a unit of the new Permanent Force. It was the headquarters of Number-1 District Depot in 1939 when war was declared on Germany. Servicemen with the prefix "A" in front of their Second World War service numbers were processed here.
Wolseley Barracks was named for Field Marshal Viscount Wolseley and was used for training regular and reserve units of the Canadian Army since its establishment. Various buildings were constructed on the property although many have since been demolished as the site reverts to civilian use. The two oldest structures on base are Wolseley Hall and the Royal School Building. The newest building on the property where the remaining logistics services of ASU London are consolidated, is the Captain Neil Logistics Facility.