MSY or msy can mean:

Places Louis Armstrong New Orleans International Airport (IATA airport code MSY), Kenner, Jefferson, Louisiana, USA; serving New Orleans Massan railway station (station code MSY), Punjab, Pakistan; a train station Merseyside (Chapman code MSY), a county in England, UK The Mount School, York (MSY), England United Kingdom; private Quaker day and boarding school

People Mulayam Singh Yadav (1939–2022; M. S. Y.), Indian politician Moses (given name) () Masayu (Msy), an Indonesian honorary title found in Sumatra

Other uses Aruamu language (ISO 639 language code msy), a language spoken in Papua New Guinea Maximum sustainable yield (MSY) Massey University School of Aviation (ICAO flight code MSY), New Zealand; see List of airline codes (M) Motor sailing yacht (M.S.Y.), a ship prefix for a yacht that can use a motor for propulsion and also sail Motorola MSY, a radio; see List of Motorola products Million Species Years (MSY), a measurement of Background extinction rate

See also

Ms Y, a refugee to Ireland involved in Irish court cases concerning abortion in the 2010s

MSYS