IGM

IGM may refer to:

• Initiative on Global Markets, at the University of Chicago Booth School of Business
• IG Metall, German metalworkers' union
• IGM Financial, Canada
• Institut Gaspard Monge, at the University of Marne la Vallée
• International Grandmaster, a chess title
• Intergalactic medium
• Kingman Airport (Arizona) (IATA Code: IGM)
• Instituto Geográfico Militar (Chile), Chilean national mapping agency
• Istituto Geografico Militare, Italian national mapping agency
• Intersex genital mutilation

Medicine

• Immunoglobulin M, an antibody