MES may refer to: Educational institutions Maharashtra Education Society, Pune, India Modern Education Schools, Cairo, Egypt MES College of Engineering MES Institute of Technology and Management MES Pattambi Companies and organizations Marconi Electronic Systems, a defunct British company Mesaba Airlines, former US airline, ICAO code Military Engineering Service, of the Pakistan Army Ministry of Emergency Situations (disambiguation), departments of various governments Former Movement of Socialist Left, Portugal Chemicals MES (buffer), 2-(N-morpholino)ethanesulfonic acid Mesityl group (Mes) in Mesitylene Economics and business Manufacturing execution systems, to track materials Minimum efficient scale of production Places Mes, Albania, location of the Mesi Bridge Polonia International Airport, Medan, Indonesia, IATA code Technologies Marine evacuation system, on ships Medium Edison screw, E26/E27 light bulb base Multilingual European subsets (MES-1 to MES-3) of Unicode Other uses Musical ear syndrome Maharashtra Ekikaran Samiti, a social committee based out of Belagavi city of India's Karnataka state Mark E. Smith, English singer and frontman of The Fall See also Mees (disambiguation) Mez (disambiguation)