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 IATA code for Mahikeng or Mmabatho Airport in South Africa Member Board of Directors Microsoft Business Division, responsible for making Microsoft Office