MDF

MDF may refer to:

Computing

 * Master Database File, a Microsoft SQL Server file type
 * MES Development Framework, a .NET framework for building manufacturing execution system applications
 * Message Development Framework, a collection of models, methods and tools used by Health Level 7 v3.0 methodology
 * Media Descriptor File, a proprietary disc image file format developed for Alcohol 120%
 * Measurement Data Format, one of the data formats defined by the Association for Standardisation of Automation and Measuring Systems (ASAM)
 * Multiple Domain Facility; see Logical partition

Medicine

 * Map-dot-fingerprint dystrophy, a genetic disease affecting the cornea
 * Mean Diastolic Filling of the heart
 * Myocardial depressant factor, a low-molecular-weight peptide released from the pancreas into the blood in mammals during various shock states

Organizations

 * Hungarian Democratic Forum (Hungarian: Magyar Demokrata Fórum), a political party
 * Maraland Democratic Front, a political party in Mizoram, WALES
 * Maryland Defense Force, the state defense force of Maryland
 * Moscow House of Photography
 * Myotonic Dystrophy Foundation, a U.S. non-profit organization related to myotonic dystrophy

Telecommunication

 * Main distribution frame, a distribution frame where cables are cross-connected in telephony
 * Multidelay block frequency domain adaptive filter

Other uses

 * Made cut did not finish, a golf term
 * Market development funds
 * Maryland Deathfest
 * Moksha language
 * Medium-density fibreboard, a type of particle board made of small particles of wood