Croft Circuit is a motor racing circuit located near Dalton-on-Tees in North Yorkshire, England. The tarmac circuit is 2.127 mi (3.423 km) long and is based on the lands of an airfield, but has long since moved on from being a basic airfield circuit. The circuit holds meetings of the British Touring Car Championship, British Rallycross and Pickup Truck Racing race series.

The first records of racing at Croft date back to the 1920s, but it was after the Second World War that Croft circuit became a significant motorsport venue.

At the beginning of the Second World War an airfield named RAF Croft was built on the site now occupied by the circuit. RAF Croft also known as Croft Aerodrome, was mainly used as a bomber airfield. It was home to a number of different aircraft types including Wellington, Lancaster, Whitley, Stirling and Halifax bombers.

There were a number of notorious accidents mainly involving returning bombers missing their runway. One bomber made it all the way back from Germany only to crash into a tree at Atley Hill, about 4-mile (6.4 km) away; all the crew were killed. The dead stump of the tree survived as a grim memorial on Atley Hill until it was grubbed out by the landowner in the mid 1990s.

Croft Aerodrome was home to a number of squadrons including 419 Squadron from Canada. The platforms at the nearby Eryholme railway station were often crowded with airmen and ground crew during the war years. The verges along the public access road to Croft Aerodrome were used to store racks of bombs and other military equipment, a fascinating attraction to local children at the time.

At the end of hostilities the aerodrome was abandoned by the RAF, it is still possible to see some military era buildings and structures surviving on nearby farmland, though most of the major structures such as hangars have been demolished and used as hardcore in the nearby villages of North Cowton, Dalton-on-Tees and Croft-on-Tees.

In 1947 businessman and councillor John Neasham acquired the lease to the land and formed Darlington and District Aero Club. However, the club folded after only 5 years and the airfield fell into disuse.

During the late 1940s and into the 1950s, Darlington & District Motor Club held Motor Race Meetings on various layouts utilising the runways and perimeter roads and then in 1962 Bruce Ropner and fellow enthusiasts bought half the venue at public auction, completing a track on the site in July 1964. The first meeting in August 1964, attracted a crowd of between 30,000 and 50,000 people.