'''MBD''' or '''MBd''' may refer to:
== Science and technology ==
=== Biology and medicine === * Marchiafava–Bignami disease, a neurological disease associated with alcoholism * Metabolic bone disease, typically resulting from mineral deficiency * Methyl-CpG-binding domain protein 2 a protein which bind the DNA on its methyl-CpG * Minimal brain dysfunction or minimal brain damage, obsolete terms for attention deficit hyperactivity disorder, dyslexia and other learning disabilities
=== Computing ===
*Megabaud (MBd), equal to one million baud, symbol rate in telecommunications *Model-based definition, a method of using 3D CAD information to provide product specifications * Model-based design, a mathematical and visual method of addressing problems associated with designing complex control, signal processing and communication systems * Motherboard, a computer component
=== Physics ===
* Maxwell–Boltzmann distribution, a probability distribution in physics and chemistry * Multibody dynamics
== Media ==
*Mordechai Ben David, a Jewish singer and recording artist * Murder by Death (band), an indie rock band * My Brightest Diamond, chamber rock band of Shara Worden * Man bites dog (journalism), a shortened version of an aphorism in journalism
== Other uses == * Member Board of Directors * Microsoft Business Division, responsible for making Microsoft Office {{disambig}}