The Distinguished Flying Medal (DFM) was a military decoration awarded to personnel of the Royal Air Force and other British Armed Forces, and formerly to personnel of other Commonwealth countries, below commissioned rank, for "exceptional valour, courage or devotion to duty whilst flying in active operations against the enemy".

The award was discontinued in 1993 when all ranks became eligible for the Distinguished Flying Cross (DFC) as part of the reform of the British honours system.

In 1993, the DFM was discontinued, as part of the review of the British honours system, which recommended removing distinctions of rank in respect of awards for bravery.

Since then, the Distinguished Flying Cross, previously only open to Commissioned and Warrant Officers, can be awarded to personnel of all ranks.

[9] "Non-Immediate" awards were made by the monarch on the recommendation of the Air Ministry and were to reward devotion to duty sustained over a period of time.

[14] The first award of a bar to the Distinguished Flying Medal was announced in the London Gazette on 3 December 1918.