MD
- Md – (s) Mendelevium
- MD – (s) Fifteen Hundred (in Roman numerals) – Maryland (postal symbol) – (i) Medicinae Doctor (Doctor of Medicine/Medical Doctor) – Mentioned in Dispatches (military) – (s) Moldova (FIPS 10-4 country code; ISO 3166 digram)
- MDA – (i) Main Defensive Action/Area – (s) Moldova (ISO 3166 trigram) – Muscular Dystrophy Association
- MDF – (i) Main distribution frame – Medium-density fiberboard
- MDG – (s) Madagascar (ISO 3166 trigram) – (i) UN Millennium Development Goal
- MDL – (s) Moldovan leu (ISO 4217 currency code)
- MDM – (i) Michigan Dartmouth MIT telescope consortium – (i) Master data management
- MDMA – (i) MethyleneDioxy-MethylAmphetamine (also known as "Ecstasy")
- MDNA – (p) Madonna 's 12th studio album title (2012)
- MDO – (i) Membership Driven Organisation
- MDP – (i) Markov Decision Process
- MDT – (i) Mountain Daylight Saving Time (UTC-6 hours)
- MDV – (s) Maldives (ISO 3166 trigram)
- MDW – (i) Chicago Midway International Airport in Chicago, Illinois (IATA Airport Code MDW) – Military District of Washington – Minnesota, Dakota and Western Railway
Read more about this topic: List Of Acronyms And Initialisms: M