| FSB | Front Side Bus | 前端总线 |
| FSB | Federal Savings Bank | 联邦储蓄银行 |
| FSB | Farmers State Bank | 农民国家银行 |
| FSB | Frankenmuth State Bank (Frankenmuth, Michigan) | Frankenmuth州立银行（密歇根州Frankenmut） |
| FSB | First Star Bank | 第一星银行 |
| FSB | Florence Savings Bank | 佛罗伦萨储蓄银行 |
| FSB | Front-Side Bus | 前侧总线 |
| FSB | Financial Services Board (South Africa) | 金融服务委员会（南非） |
| FSB | Fakultet Strojarstva i Brodogradnje (Croatian: Faculty of Mechanical Engineering and Naval Architecture) | Fakultet Strojarstva i Brodogradnje（克罗地亚语：机械工程和海军建筑学院） |
| FSB | Fallout Studies Branch, Division of Biology & Medicine | 研究部门、分工落尘生物和医药 |
| FSB | Free Software Business | 自由软件业务 |
| FSB | Financial Systems Branch | 金融系统部 |
| FSB | Fuel Support Building | 燃料支持大楼 |
| FSB | Flight Standardization Board | 飞行标准化委员会 |
| FSB | Field Service Bulletin | 现场服务公告 |
| FSB | Front Sight Base | 前视镜座 |
| FSB | Falange Socialista Boliviana (Bolivian Socialist Falange) | 玻利维亚社会主义者（玻利维亚社会主义者） |
| FSB | Full Search Block | 完整搜索块 |
| FSB | Frequency - Same Bearing (tactical acoustic analysis) | 频率-相同方位（战术声学分析） |
| FSB | Federation of Small Businesses (UK) | 小企业联合会（英国） |
| FSB | Fasten Seat Belt (aviation) | 系好安全带（航空） |
| FSB | Forward Staging Base | 转发暂存库 |
| FSB | Fuqua School of Business (Duke University) | 富夸商学院（杜克大学） |
| FSB | Federation of Sneaky Bastards (airsoft team) | 偷偷摸摸混蛋联盟（airsoft团队） |
| FSB | Financial Services Board | 金融服务委员会 |
| FSB | Federalnaya Sluzhba Bezopasnosti | 斯拉日巴·贝佐帕斯诺斯蒂联邦 |
| FSB | Fully Split Bands (coin grading) | 完全分割带（硬币分级） |
| FSB | Force Status Briefing (US Army) | 部队状态简报（美国陆军） |
| FSB | focal suppression bursts | 焦点抑制脉冲 |
| FSB | formosulfabenzamide | 甲磺基苯甲酰胺 |
| FSB | fetal scalp blood | 胎儿头皮血 |
| FSB | File Selection Box | 文件选择框 |
| FSB | Federation of Small Businesses | 小企业联合会 |
| FSB | Florida Sea Base (Islamorada, FL conference center) | 佛罗里达海洋基地（佛罗里达州会议中心Islamorada） |
| FSB | Federal Security Beureau | 联邦安全局 |
| FSB | Future Synergistic Benefits | 未来协同效益 |
| FSB | Force Shaping Board (US Air Force) | 力量塑造委员会（美国空军） |
| FSB | Fire Support Base | 消防支持基地 |
| FSB | Forward Support Battalion | 前方支援营 |
| FSB | Fully Split Bands | 完全拆分带 |
| FSB | Federalnaia Sluzhba Bezopasnosti | 斯卢日巴·贝佐帕斯诺斯蒂联邦 |
| FSB | Free Standing Base | 独立底座 |
| FSB | Fast Super Bus | 快速超级巴士 |
| FSB | Finite State Buffer | 有限状态缓冲区 |
| FSB | Finjan SecureBrowsing | Finjan安全浏览 |
| FSB | Flow State Block | 流动状态块 |
| FSB | Financial Spread Betting (London) | 金融点差投注（伦敦） |
| FSB | Fiber Seeking Backhoe | 光纤搜索反铲 |
| FSB | Fuzzy Switchover Block | 模糊切换块 |
| FSB | Factory System Bench | 工厂系统试验台 |
| FSB | Functional System Block | 功能系统块 |
| FSB | forward support base (US DoD) | 前方支援基地（美国国防部） |
| FSB | Full Size Bronco (Ford vehicle club) | 全尺寸野马（福特汽车俱乐部） |
| FSB | Fire Support Battery | 消防支持电池 |
| FSB | Floating Support Bases | 浮动支撑底座 |
| FSB | FlightSafetyBoeing | 飞行安全波音 |
| FSB | Full Size Bronco (vehicle) | 全尺寸Bronco（车辆） |
| FSB | Full System Backup (computer) | 完整系统备份（计算机） |
| FSB | Federalnaya Sluzhba Bezopasnosti (Russian: Federal Security Service; FSK successor since 1995) | Federalnaya Sluzhba Bezopasnosti（俄语：联邦安全局；FSK自1995年起继任） |
| FSB | Fleet Satellite Broadcast | 舰队卫星广播 |
| FSB | Final Staging Base | 最终暂存库 |
| FSB | Forward Support Battalion (US Army) | 前方支援营（美国陆军） |