GTM

GTM can stand for
* Guatemala
* GTM Cars
* GTM Sportswear
* GT-M, a soviet tracked military vehicle. Also known by the GT-MU command and control variant.
* Large Millimeter Telescope (Spanish:Gran Telescopio Milimétrico), the world's largest millimetric telescope, located in Mexico.
* Gas Transfer Membrane, a water purification process
* Generative topographic map
* Global Trade Management, Integrated approach to helping importers and exporters manage most aspects of international trade operations.
* Golden Triangle Mall, a mall in Denton, Texas
* Glue the Moose Myth World Cup, a Myth II order that played in many MWCs
* Graduate Texts in Mathematics, a series of mathematics textbooks published by Springer-Verlag.
* Gross Trailer Mass, the portion of the mass of a fully laden Trailer (vehicle) that is carried by the wheels
* Go To Market: strategy to approach the market with a new product/service
* Global Tax Management, a tax service company
* Global Travel Market, a price comparison engine in the travel industry
* GTM (metric), a machine translation evaluation metric
* Gay Themed Movie
*Grammar Translation Method