RAF Caistor is a former Royal Air Force Relief Landing Ground located 6.2 miles (10.0 km) south east of Brigg, Lincolnshire and 9.1 miles (14.6 km) north west of Binbrook, Lincolnshire, England, the site is now used for farming.

• Satellite of No. 1 Air Armament School RAF (December 1942 - June 1943)
• Relief Landing Ground for No. 15 (Pilots) Advanced Flying Unit RAF (June - September 1942)
• No. 53 Operational Training Unit RAF (1943-44)
• A detachment of No. 85 Squadron RAF
• Sub site for No. 93 Maintenance Unit RAF (December 1948 - December 1950)
• Sub site for No. 233 Maintenance Unit RAF (February 1945 - ?)
• Relief Landing Ground for RAF College SFTS (June 1943 - March 1944) became Relief Landing Ground for No. 17 Service Flying Training School RAF (March 1944 - February 1945)

• No. 269 Squadron RAF with PGM-17 Thors

The site has now returned to agricultural use, and little remains of the military facilities.

• Falconer, J (2012). RAF Airfields of World War 2. UK: Ian Allan Publishing. ISBN 978-1-85780-349-5.
• Jefford, C.G. (1988). RAF Squadrons. A comprehensive record of the movement and equipment of all RAF squadrons and their antecedents since 1912. Shrewsbury: Airlife. ISBN 1-85310-053-6.
• Sturtivant, R; Hamlin, J; Halley, J (1997). Royal Air Force flying training and support units. UK: Air-Britain (Historians). ISBN 0-85130-252-1.

• Media related to RAF Caistor at Wikimedia Commons
• Historic England. "Monument No. 1543704". Research records (formerly PastScape). Retrieved 24 March 2015.