MD, Md, mD ko md na iya nufin to:   Moldova (lambar lambar MD MD) Maryland (MD taƙaicewar wasiƙar MD) Magdeburg (MD prefix MD), birni ne a cikin Jamus Gundumar Mödling (prefix farantin abin hawa MD), a cikin Lower Austria, Austria Major Douglas shekarar alif ta (1879 zuwa shekarar alif ta 1952), Injiniyan Burtaniya kuma majagaba na motsi na sake fasalin tattalin arziƙin zamantakewa Muhammad (suna) ko Mohammed (Md) Main droite ko mano destra (MD ko md), wanda aka yi amfani da shi a cikin ƙarar piano don yin alama jerin bayanan da za a buga da hannun dama Daraktan kiɗa ; ana amfani da kalmar "MD" musamman a gidan wasan kwaikwayo (jerin TV), wasan kwaikwayo na likitancin talabijin na shekara ta 2002 ("Kayan aiki da tattaunawa don nazarin rubutun gargajiya"), mujallar litattafan litattafan Italiya Mega Drive, na'urar wasan bidiyo ta Sega ta samar Air Madagascar (lambar jirgin saman IATA MD) McDonnell Douglas (prefix samfurin jirgin sama MD), tsohon mai kera sararin samaniya wanda daga baya ya haɗu da Boeing.