| General Santos | Airport Code | GES |
| Gering Erhalten Schlecht (German coin grade equivalent to Almost Good) | Coin | GES |
| Guess?, Inc. | NASDAQ Symbol | GES |
| Generic equipment simulator | Electronics | GES |
| General Employment of Seattle | Organization | GES |
| Guess, Inc. | NYSE Symbol | GES |
| gastroesophageal sphincter | British Medicine | GES |
| Gesellschaft | German | GES |
| Global Ethical Standard | International Business | GES |
| Gateway Earth Station | Military | GES |
| GIG (Global Information Grid) Enterprise Services | Military | GES |
| Great Elementary Students | Education | GES |
| Geographic Enterprise Solutions | Geography | GES |
| Gig ( Global Information Grid) Enterprise Services | Military and Defence | GES |
| Grupos Especiales de Seguridad | Spanish | GES |
| General Santos, Philippines | Regional Airport Code | GES |
| Grace Evangelical Society | Religious | GES |
| General Estimates System | Transportation | GES |
| Global Enqueue Service | Computer Networking | GES |
