| FA | Flight Attendant | 空服员 |
| FA | Failure Analysis | 故障分析 |
| FA | Finish Artist | 完稿 |
| FA | Field application | 现场应用 |
| FA | Football Association | （英国）足球协会 |
| FA | free alongside | 启运港船边交货 |
| FA | Feeder Automation | 馈线自动化 |
| FA | Fourier Analysis | 傅立叶分析 |
| FA | fatty acid | 脂肪酸 |
| FA | Fludarabine | 氟达拉宾 |
| FA | Factor Analysis | 因子分析 |
| FA | Factory Automation | 工厂自动化 |
| FA | Field Ambulance | 战地救护车 |
| FA | Fine Arts | 美术 |
| FA | First Aid | (对病人的)急救 |
| FA | Field Artillery | 野战炮(兵) |
| FA | Final Address | 最终地址 |
| FA | Fluorescent Antibody | 荧光抗体 |
| FA | Finacial Aid | 奖学金支助 |
| FA | Fibrosing Alveolitis | 纤维性肺泡炎 |
| FA | Fire Automatization | 防火自动化、消防自动化 |
| FA | Fiber Adaption | 光纤适配 |
| FA | Frame Aligner | 帧定位器 |
| FA | Frame Alignment | 帧定位 |
| FA | First Attendant | 空中服务员 |
| FA | Functional Audit | 功能检查 |
| FA | Fixed Assets | 固定资产 |
| FA | Finance Pool | 资产分类 |
| FA | Football Association (UK) | 英国足球协会 |
| FA | Football Association (England) | 足球协会（英格兰） |
| FA | Federal Association | 联邦协会 |
| FA | Fibonacci Association | 斐波那契协会 |
| FA | Financial Advisor | 财务顾问 |
| FA | Family Allowance | 家庭津贴 |
| FA | Formal Advertising | 正式广告 |
| FA | Full Arc | 全圆弧 |
| FA | Fame Academy (UK BBC series) | 名人学院（英国BBC系列） |
| FA | Fuel Assembly | 燃料组件 |
| FA | French Angora (rabbit) | 法国安哥拉（兔子） |
| FA | Fighter Allocator | 战斗机分配器 |
| FA | Fulvic Acid | 黄腐酸 |
| FA | Frankfort Arsenal (Philadelphia, Pennsylvania) | 法兰克福兵工厂（宾夕法尼亚州费城） |
| FA | Focus Area | 重点领域 |
| FA | Funds Allocated (USACE) | 分配资金（USACE） |
| FA | Fluorescein Angiogramic Angiography | 荧光素血管造影 |
| FA | Functional Acknowledgment | 功能性确认 |
| FA | Falkland Islands (Islas Malvinas) | 福克兰群岛（马尔维纳斯群岛） |
| FA | Free Agent (baseball, football, etc.; player who may sign with any team) | 自由球员（棒球、足球等；可以与任何球队签约的球员） |
| FA | Friederich's Ataxia | Friederich共济失调的 |
| FA | Foreign Agent (network node) | 外部代理（网络节点） |
| FA | Focus Alert | 焦点警报 |
| FA | Forte Agent | Forte代理 |
| FA | Financial Aid | 财政援助 |
| FA | Finally Approved (sarcastic variation of Final Approval) | 最终批准（最终批准的讽刺性变化） |
| FA | Function Analysis (product engineering / development tool) | 函数分析(产品工程/开发工具) |
| FA | Fiscal Agent (Medicaid) | 财政代理人（医疗补助） |
| FA | FanArt | FanArt公司 |
| FA | Finance Academy under the Government of the Russian Federation | 俄罗斯联邦政府财政学院 |
| FA | Factories Act 1961 (UK) | 1961年工厂法（英国） |
| FA | Family Assistance | 家庭援助 |
| FA | fractional anisotropy | 分数各向异性 |
| FA | Frontal Aviation | 正面航空 |
| FA | Faculty Assistant | 教员助理 |
| FA | False Alarm | 错误报警 |
| FA | Federal Agent | 联邦代理人 |
| FA | Food Allergy | 食物过敏 |
| FA | Formic Acid | 甲酸 |
| FA | Forced Air | 强制通风 |
| FA | Fully Automatic | 全自动 |
| FA | Fund Accounting | 基金会计 |
| FA | Final Assembly | 最终装配 |
| FA | Fuse Alarm | 保险丝报警 |
| FA | Fire Alarm | 火警 |
| FA | Final Approach | 最终进近 |
| FA | Final Acceptance | 最终验收 |
| FA | Financial Agent | 财务代理人 |
| FA | Final Approval | 最终批准 |
| FA | For Auction | 用于拍卖 |
| FA | Full Adder | 完整加法器 |
| FA | Feasibility Analysis | 可行性分析 |
| FA | Flexible Alerting | 灵活的警报 |
| FA | Finanzamt (German: revenue office) | Finanzamt（德语：税务局） |
| FA | Fairchild Aircraft | 费亚切尔德飞机公司 |
| FA | Frankford Arsenal (PA; ammunition headstamp) | 弗兰克福德兵工厂（PA；弹药印章） |
| FA | First Aid/Medical Aid Station | 急救/医疗救助站 |
| FA | Farmers' Almanac | 农民年鉴》 |
| FA | Frequency Agile/Agility | 频率灵活/敏捷 |
| FA | Functional Analysis | 功能分析 |
| FA | folic acid | 叶酸 |
| FA | fluorescein angiography | 荧光素血管造影术 |
| FA | Fatty Acid | 脂肪酸 |
| FA | fusidic acid | 纺锤酸 |
| FA | Fat Admirer | 胖子崇拜者 |
| FA | Farm Aid | 农场援助 |
| FA | Fallen Angel | 堕落天使 |
| FA | Functional Area | 功能区 |
| FA | Force Analyzer | 力分析器 |
| FA | Flanking Attack | 侧翼进攻 |
| FA | Functional Assessment | 功能评估 |