GSMT
| Acronym | Definition |
|---|---|
| GSMT | General Society of Mechanics and Tradesmen of the City of New York (New York, NY) |
| GSMT | Giant Segmented Mirror Telescope |
| GSMT | Gigabyte Server Management Tool (computing) |
| GSMT | Girl Scouts of Michigan Trails (Grand Rapids, MI) |
| GSMT | Golden State Mortgage Trust, Inc. (Riverside, CA) |
| GSMT | Gibson Spiral Maze Test (psychiatric test) |