| FEG | Fourth Estate Guardian | 第四产业监护人 |
| FEG | Facility Engineer Group (US Army) | 设施工程师组（美国陆军） |
| FEG | Field Emission Gun | 场发射枪 |
| FEG | FederaciÓn de Educadores de Guatemala | FederaciÓn de Educadores de Guatemala |
| FEG | FundaciÓn Educativa Guatemala | FundaciÓn Educativa Guatemala |
| FEG | Fergana, Uzbekistan | 乌兹别克斯坦费尔干纳 |
| FEG | Finite Element Graph | 有限元图 |
| FEG | Fletcher Challenge Engineering Division | 弗莱彻挑战工程部 |
| FEG | Flying Electric Generator | 飞行发电机 |
| FEG | Phenylalanine-Glutamic Acid-Glycine | 苯丙氨酸谷氨酸甘氨酸 |
| FEG | Field Emission Gun (electron emission source commonly used in TEM and SEM) | 场发射枪（TEM和SEM中常用的电子发射源） |