GTMM
| Acronym | Definition |
|---|---|
| GTMM | Globetrotter Mobility Manager (software) |
| GTMM | General Transfer Matrix Method |
| GTMM | Geotechnical Measurements and Modelling (conference) |
| GTMM | General Training for Mustofiats Managers |
| GTMM | Ghadir Textile Machinery Mfg. (Iran) |
| GTMM | Grupo de Trabalho Misto de Meteorologia (Portuguese: Joint Working Group on Meteorology) |
| GTMM | Groupware-Based Topic Map Modeler (software) |
| GTMM | Global Terrestrial Mercury Model (geoscience) |