| BEST | Brihanmumbai Electric Supply and Transport LTD | Brihanmumbai电力供应和运输有限公司 |
| BEST | Business Electronic Systems Techniques | 商业电子系统技术 |
| BEST | Bureau of Emergency Services Telecommunications | 应急服务电信局 |
| BEST | Board of European Students of Technology | 欧洲技术学生委员会 |
| BEST | Bahamas Environment Science and Technology | 巴哈马环境科学与技术 |
| BEST | Broadcast Engineering and Systems Technology (Engineering and I-T Division of CNN) | 广播工程和系统技术（美国有线电视新闻网工程和I-T部） |
| BEST | Balancing Government, Empowering People, Strengthening Families and Trust in Government | 平衡政府、赋权人民、加强家庭和对政府的信任 |
| BEST | Brainstem Encephalitis Support Team | 脑干脑炎支持团队 |
| BEST | Biconditional Equalised Signal Tracking (JVC VCRs) | 双条件均衡信号跟踪（JVC VCR） |
| BEST | Basic English Skills Test | 基本英语技能测试 |
| BEST | Business Equipment Software Techniques | 商业设备软件技术 |
| BEST | Belize Enterprise for Sustainable Technology | 伯利兹可持续技术企业 |
| BEST | Building Excellence in Science and Technology | 打造卓越科技 |
| BEST | Better Engineering Through Science and Technology | 通过科学技术改善工程 |
| BEST | Boosting Engineering Science and Technology | 促进工程科学与技术 |
| BEST | Better Engineering Students Today | 今天更好的工科学生 |
| BEST | Bandwidth Efficient Satellite Transport | 带宽高效卫星传输 |
| BEST | Business Employment Skills Training | 商业就业技能培训 |
| BEST | Board on Environmental Studies and Toxicology (National Academies Sciences, Engineering, and Medicine) | 环境研究和毒理学委员会（国家科学、工程和医学院） |
| BEST | Booster Exhaust Study Test (NASA) | 增压器排气研究试验（NASA） |
| BEST | Bacon Egg Sausage Tomato (sandwich) | 培根蛋香肠番茄（三明治） |
| BEST | Bio Energetic Synchronization Technique (alternative health) | 生物能量同步技术（替代健康） |
| BEST | Benefit Eligibility Screening Tool (US Social Security) | 福利资格筛选工具（美国社会保障） |
| BEST | Better Estimation of Software Development Tasks | 更好地评估软件开发任务 |
| BEST | Black Efforts for Soul in Television | 电视中的黑人灵魂努力 |
| BEST | Basic Essential Skills Test (US Army) | 基本基本技能测试（美国陆军） |
| BEST | Building Enterprise Success Tomorrow | 打造企业成功的明天 |
| BEST | De Bruijn, Van Aardenne-Ehrenfest, Smith, Tutte (graph-theoretic theorem) | De Bruijn，Van Aardenne Ehrenfest，Smith，Tutte（图论定理） |
| BEST | Bombay Electric Supply and Transport Company | 孟买电力供应和运输公司 |
| BEST | Bishops' Executive Secretaries Together | 主教的执行秘书 |
| BEST | Boeing Employees' Stump Thumpers (4x4 club) | 波音公司员工的树桩Thumpers(行棋俱乐部) |
| BEST | Boeing Employees Skeet & Trap | 波音公司员工双向飞碟和陷阱 |
| BEST | Benefits and Services Team | 福利和服务团队 |
| BEST | Border Enforcement & Security Task Force | 边境执法和安全小组 |
| BEST | Brighton Eels Swim Team (Michigan) | 布莱顿鳗鱼游泳队（密歇根州） |
| BEST | Berkeley Ecological and Safe Transportation (coalition) | 伯克利生态与安全运输（联盟） |
| BEST | Baker Engineering Support Team (Baker Electronics) | 贝克工程支持团队（贝克电子） |
| BEST | Bangui Evangelical School of Theology | 班吉福音神学学校 |
| BEST | Better Electronic Service Technicians (training program) | 更好的电子服务技术人员（培训计划） |
| BEST | breast examination through simultaneous temperature evaluation | 同时进行体温评估的乳房检查 |
| BEST | Bringing Everybody's Strengths Together | 把每个人的力量 |
| BEST | Business Enhancement Services Team | 业务增强服务团队 |
| BEST | Bombay Electricity and State Transport | 孟买电力和国家交通 |
| BEST | Biomonitoring of Environmental Status and Trends (Biological Resources Division, USGS) | 环境状况和趋势的生物监测（美国地质勘探局生物资源部） |
| BEST | Base Engineering Support, Technical | 基础工程支持、技术 |
| BEST | Box Elder Swim Team (Brigham City, UT, USA) | Box Elder游泳队（美国犹他州布里格姆市） |
| BEST | Building Excellence In Supervisory Training (Sprint) | 建立卓越的监督培训（Sprint） |
| BEST | Bids Evaluation Support Tool | 评标支持工具 |
| BEST | Basic Education Support Team | 基础教育支持团队 |
| BEST | Bare Essentials of Surface Transfer | 表面转移的基本要素 |
| BEST | Back-End Service Transaction | 后端服务事务 |
| BEST | Battlespace Enhanced Survivability Technology | 战场增强生存能力技术 |
| BEST | Building Essential Skills for Tomorrow | 为未来培养基本技能 |
| BEST | Battlefield Environment Simulation Toolkit | 战场环境模拟工具包 |
| BEST | Broadening Experience Special Tour (USAF) | 拓展体验特别之旅（USAF） |
| BEST | Ballastable Earthmoving Sectionalized Tractor | 压载式土方分段拖拉机 |
| BEST | Basic Electromagnetic Simulation Tool | 基本电磁模拟工具 |
| BEST | Benefits and Entitlements Service Team | 福利和权利服务团队 |
| BEST | Better Environmentally Sound Transportation (Canada) | 更好的环保运输（加拿大） |
| BEST | Business Excellence Strategies and Techniques | 卓越业务战略和技术 |