| Acronym | Definition |
|---|
| GAiN | Global Aid Network (Campus Crusade for Christ) |
| GAiN | Global Alliance for Improved Nutrition |
| GAiN | Global Agricultural Information Network (USDA) |
| GAiN | Greater Avenues for Independence (Welfare to Work Program) |
| GAiN | Great Ape Information Network (National Institute of Genetics; Japan) |
| GAiN | Graphic Arts Information Network |
| GAiN | Greater Avenues to Independence |
| GAiN | Gator Advertising and Information Network |
| GAiN | German Advanced Integrated Network |
| GAiN | Greenwood Aurora Involved Neighbors (Seattle, WA) |
| GAiN | Global Auditing Information Network |
| GAiN | Gippsland Aquaculture Industry Network Inc |
| GAiN | Global Airline Inventory Network (Boeing) |
| GAiN | Global Analysis Information Network |
| GAiN | Gelbvieh Association in Nebraska |
| GAiN | Global Automation Information Network |
| GAiN | Galley Insert Equipment |
| GAiN | Getting Arizona Interested in Neighborhoods |
| GAiN | Global Advanced Intelligent Networking (Sprint) |
| GAiN | Government Accountability & Information Network |