MCD

MCD, Mcd or mcd may refer to:

Science

 * Magnetic circular dichroism, with polarized light
 * Malonyl-CoA decarboxylase, an enzyme involved in fatty acid biosynthesis
 * Mesoscale convective discussion, Storm Prediction Center forecast
 * Millicandela (mcd) or Megacandela (Mcd), units of brightness or light intensity

Medical

 * Minimal change disease, a disease of the kidney
 * Multicentric Castleman's disease, a sub-type of Castleman's disease

Technology

 * Magnetic chip detector, in engines
 * Maxi single or Maxi single Compact Disc
 * Mega CD, a console by Sega
 * Mini compact disc
 * .mcd, a Mathcad document file

Transportation

 * Mackinac Island Airport (IATA airport code), in Michigan, US
 * Macleod railway station, Melbourne
 * Merced station (Amtrak) (station code), California, US
 * Moscow Central Diameters, commuter rail system in Moscow, Russia

Organizations

 * MCD Productions, an Irish event promoter
 * MCD, an imprint of Farrar, Straus and Giroux
 * McDonald's, restaurant chain, NYSE stock ticker
 * Melbourne College of Divinity
 * Monte Carlo Doualiya, a French public radio service in the Middle East
 * Municipal Corporation of Delhi

Other uses

 * 1400 (Roman numerals)
 * M Countdown, a South Korean music TV program
 * Minecraft Dungeons, a video game
 * Minor civil division, a geographical term used by the United States Census Bureau
 * North Macedonia (UNDP code: MCD), a sovereign state in Europe