David Ronald de Mey Warren AO (20 March 1925 – 19 July 2010) was an Australian scientist, best known for inventing and developing the flight data recorder and cockpit voice recorder (also known as FDR, CVR and "the black box").

[3][4] His father died in the crash of the de Havilland D.H.86 Miss Hobart over the Bass Strait in 1934.

Warren's invention, which relied on magnetic recording media, allowed easy erasing and re-recording, which made it practical for routine line service.

[21] On 25 March 2014, the Defence Science and Technology Organisation renamed their Canberra headquarters the "David Warren Building".

[22] On 20 March 2021, Google showed a Doodle on its home page in some countries for David Warren's 96th birthday.