GTM

GTM may refer to:

Places

 * Guatemala, a country
 * Golden Triangle Mall, a mall in Denton, Texas
 * Greater Manchester, metropolitan county in England, Chapman code

Science, technology, and mathematics

 * GoToMeeting, online meeting and desktop sharing software
 * Graduate Texts in Mathematics, a series of mathematics textbooks published by Springer-Verlag
 * Generative topographic map, a machine learning method
 * Global Traffic Manager, a load balancing module for some F5 Networks appliances
 * Global Server Load Balancing
 * Google Tag Manager, a tag management system built by Google
 * Greystone Technology M, a schema-less transactional database
 * Large Millimeter Telescope (Spanish: Gran Telescopio Milimétrico), the world's largest millimetric telescope, located in Mexico

Vehicles

 * Gross Ton Mile, the product of total weight (including the weight of lading cars and locomotives) and the distance moved by a train or other vehicle
 * Gross Trailer Mass, the portion of the mass of a fully laden trailer that is carried by the wheels
 * GT-M, a Soviet tracked military vehicle
 * GT-MU, a command and control variant
 * GTM Cars, a former UK-based kit car manufacturer from 1967 to 2022
 * GTM Supercar Factory Five Racing

Other uses

 * Go-to-market, a strategy to approach the market with a new product or service
 * Grammar–translation method, a method of language teaching
 * Greentech Media, a media and research company that covered the green technology market
 * Groovin' the Moo, an annual music festival held at various regional centres across Australia during the middle of the year
 * Great Translation Movement, online anti-war movement