BD, Bd or bd may refer to:
For other uses, see BDO (disambiguation).
The relationship between BDSM and the law changes significantly from nation to nation. It is entirely dependent on the legal situation in individual countries whether the practice of BDSM has any criminal relevance or legal consequences.
The Bi-Digital O-Ring Test (BDORT), characterized as a form of applied kinesiology, is a patented alternative medicine diagnostic procedure in which a patient forms an 'O' with his or her fingers, and the diagnostician subjectively evaluates the patient's health according to the patient's finger strength as the diagnostician tries to pry them apart.
BD+ is a component of the Blu-ray Disc Digital Rights Management system. It was developed by Cryptography Research Inc.
The BDO International Grand Prix Series was a series of tournaments in the sport of darts. Organised by the British Darts Organisation (BDO), the series was made up of five already established 'stand-alone' darts tournaments that were played under a generic ‘umbrella’ format.