| Acronym | Definition |
|---|
| GISN➣Global Influenza Surveillance Network |
| GISN➣Global Ip Telephony Subscriber Number |
| GISN➣Global Information Server Node (Mountain Forum) |
| GISN➣Georgia Interpreting Services Network (Atlanta, GA) |
| GISN➣Global IP-Telephony Subscriber Number |
| GISN➣Global Intelligent Services Network |