BD5, Bd5 or BD-5 may refer to:
Places
BD5 (postcode district), a district of the Bradford postcode area in the UK. ISO-3166:BD-05, the ISO 3166-2:BD subdivision code for Bagerhat District, Bangladesh
In science and technology
BD5 (Blu-ray format), an unofficial name for a Blu-ray disc format using a single-layer 4.7 GB DVD Bede BD-5, a small kit aircraft by Bede Aviation 1998 BD5, a designation for the asteroid 10628 Feuerbacher
Other uses
Bd5, a chess move recorded in algebraic notation.