GML

GML may refer to:

Computing

 * Game Maker Language, the scripting language of Game Maker
 * Generalized Markup Language, a set of macros for the IBM text formatter, SCRIPT
 * Generative Modelling Language, an extension of PostScript used for the concise description of complex 3D shapes
 * Geography Markup Language, an XML grammar to express geographical features
 * Graffiti Markup Language, an XML-based file format that stores graffiti motion data
 * Graph Modelling Language, a hierarchical ASCII-based file format for describing graphs

Other uses

 * Canadian Gold Maple Leaf, a gold bullion coin
 * Gilmala Halt railway station (station code), in Pakistan
 * GML Heritage, an Australian heritage consultancy firm
 * Hostomel Airport (IATA code), in Ukraine
 * Gradient multilayer nanofilm, a nanomaterial
 * Grand Medal of Lotus Flower, an honour of Macau
 * Guardian Media Limited, a Trinidadian media company
 * Middle Low German (ISO 639-3 code), a formerly used European language
 * Glycerol monolaurate, a naturally occurring antimicrobial agent