BDM explained

BDM may refer to:

Arts and entertainment

Berkeley Dance Marathon, an annual benefit for the Elizabeth Glaser Pediatric AIDS Foundation hosted at University of California, Berkeley
Big Damn Movie, referring to the movie Serenity by Joss Whedon
Black Desert Mobile

Civil registration of births, deaths and marriages in the UK and many Commonwealth countries, with records usually held by the General Register Office
Bund Deutscher Mädel (League of German Girls), a girls' organisation in Nazi Germany

Braddock Dunn & McDonald, a longtime defense contractor of 7000 employees purchased by TRW Inc in the mid-1990s
Business decision mapping, a technique for making decisions of the kind that often need to be made in business
Business development manager, a job-title for commercial employees that aim to increase company size, revenue, and profits by leveraging business intelligence, technology, partnerships, sales, and marketing.
BDM (aircraft constructor), a French aircraft constructor/designer; see List of aircraft (B–Be)

Background debug mode interface, a programming interface to embedded systems microcontrollers like JTAG
2,3-Butanedione monoxime, an organic compound also known as diacetyl monoxime
Browning BDM, the "Browning Dual Mode" automatic pistol made by Browning
M141 Bunker Defeat Munition, a modern weapon
Bateson–Dobzhansky–Muller model, a model of evolutionary speciation
Becker-DeGroot-Marschak method, a method of measuring willingness-to-pay in experimental economics
Biodiversity Monitoring Switzerland