GSTM
| Acronym | Definition |
|---|---|
| GSTM | General System Test Module |
| GSTM | Glutathione S-Transferase M1 (genes; also seen as GSTM1) |
| GSTM | Grace School of Theology and Ministry (Pleasant Hill, CA) |
| GSTM | Golf and Sports Turf Management |
| GSTM | Gatespace Telematics (supplier of systems and components for telematics) |
| GSTM | Giggling Silently to Myself (chat slang) |
| GSTM | GRACE (Gravity Recovery and Climate Experiment) Science Team Meeting (conference) |
| GSTM | GNOME SSH (Secure Shell) Tunnel Manager (software) |