| Acronym | Definition |
|---|
| GSNS➣Grayson Space Navy Ship (Honor Harrington Science Fiction novels) |
| GSNS➣Gesellschaft für System und Netzwerk Service MBH (Germany) |
| GSNS➣Ground Safety Notification System (US Army) |
| GSNS➣Graduate School, Natural Sciences (International Christian University; Tokyo, Japan) |
| GSNS➣Gothic Society of Nova Scotia (Canada) |