| AIFS | Advanced Infra-red Seeker | 先进红外导引头 |
| AIFS | Advanced Indirect Fire System | 先进间接射击系统 |
| AIFS | Australian Integrated Forecasting System | 澳大利亚综合预报系统 |
| AIFS | Allied Information Flow System | 联合信息流系统 |
| AIFS | Arbitration Inter-Frame Space | 仲裁帧间空间 |
| AIFS | American Institute for Foreign Study, Inc (cultural exchange programs organizer) | 美国外国研究所（文化交流项目组织者） |
| AIFS | Australian Institute of Family Studies | 澳大利亚家庭研究所 |
| AIFS | Advanced Indirect Fire Systems | 先进间接消防系统 |