Royal Air Force Tuddenham or RAF Tuddenham is a former Royal Air Force Sub station located 3.2 miles (5.1 km) south east of Mildenhall, Suffolk, England and 7.8 miles (12.6 km) north west of Bury St Edmunds, Suffolk.

• No. 3 Lancaster Finishing School RAF.
• No. 90 Squadron RAF starting on 13 October 1943 with the Short Stirling III before changing to the Avro Lancaster I and III in May 1944 and leaving on 11 November 1946 to RAF Wyton.
• No. 138 Squadron RAF between 9 March 1945 and 12 November 1946 with the Avro Lancaster I and III before moving to RAF Wyton.
• No. 149 Squadron RAF between 29 April 1946 and 4 November 1946 with the Avro Lancaster I and III.
• No. 186 Squadron RAF reformed at RAF Tuddenham on 1 October 1944 with the Lancaster I and III before moving to RAF Stradishall on 17 December 1945 where the squadron disbanded on 17 July 1945.
• No. 207 Squadron RAF used the airfield between 29 April 1946 and 8 November 1946 with the Lancaster I and III.
• No. 281 Maintenance Unit.

• USAF 3114th Ammo Supply Squadron. Munitions storage and refurbishment. 1955–1959. Reestablished when the 8th Air Force returned to RAF Lakenheath. About 100 USAF airmen in refurbished barracks. A small RAF contingent for munitions disposal. Bombs in runways marked with large X. Small arms stored in hangars.
• No. 107 Squadron RAF – PGM-17 Thor nuclear missiles.

The site is now used for farming and Gunman Airsoft.

• List of former Royal Air Force stations

• Falconer, Jonathan (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.