GDM

GDM may refer to:


 * Desportivo Maputo, a Mozambican football club
 * Gardner Municipal Airport (Massachusetts)
 * Giardini di Mirò, an Italian rock band
 * Gesellschaft für Didaktik der Mathematik
 * Gestational diabetes mellitus
 * Gibraltar Democratic Movement
 * GNOME Display Manager
 * Gold Decoration for Merit, an honour of South Africa
 * Gradient discretisation method
 * Grassroots Development Movement, a political party in Liberia
 * Greyhound Mexico