MSX (disambiguation)
MSX is a computer standard. MSX may also refer to:
 MSX, a disease caused by the Haplosporidium nelsoni pathogen of oysters
 Metal Slug X, a video game
 Midcourse Space Experiment, an infrared satellite telescope
 MSX, IATA code for Mossendjo Airport in the Republic of the Congo
 Stanford MSx, a management program at Stanford University, formerly known as the Sloan Fellows Program