GMSI
| Acronym | Definition |
|---|---|
| GMSI | Global Management Systems, Inc. |
| GMSI | Graphic Mining Solutions International (South Africa) |
| GMSI | Gemini Microsystems International (Athens, GA) |
| GMSI | Geographic Marketing Solutions, Inc. |
| GMSI | Green Mountain Suzuki Institute (New Haven, VT) |
| GMSI | Grand Master of the Order of the Star of India |