The 1923 Daimler Airway de Havilland DH.34 crash occurred on 14 September 1923 when a de Havilland DH.34 of Daimler Airway operating a scheduled domestic passenger flight from Croydon to Manchester crashed at Ivinghoe, Buckinghamshire, England, killing all five people on board.

It was also reported to be carrying mail,[2] although this was later denied by the General Post Office.

[2] As a result of the crash, Daimler Airway temporarily suspended their service between Croydon and Manchester, due to having no aircraft to operate it.

Evidence was given that the pilot was experienced,[4] having flown for 755 hours,[5] and that the aircraft was airworthy on departure from Croydon.

[5] This was something that The Times had called for in its issue of 19 September 1923, citing this accident and one that had occurred the previous month at East Malling, Kent.