| BART | Bay Area Rapid Transit System (in San Francisco) | (旧金山)海湾地区快速运输系统(电气火车)[美] |
| BART | Basic Application Run Time (IBM, OS/2) | 基本的应用程序运行时(IBM,OS / 2) |
| BART | Best Available Retrofit Technology | 最佳可用改装技术 |
| BART | Brain Attack Response Team | 脑攻击反应小组 |
| BART | Balloon Analog Risk Task | 气球模拟风险任务 |
| BART | Butterfly Analysis and Review Test | 蝴蝶分析和审查测试 |
| BART | Bay Area Rapid Transit (San Francisco, CA) | 湾区捷运（加利福尼亚州旧金山） |
| BART | Bay Area Rural Transit (Ashland, WI) | 湾区农村交通（威斯康星州阿什兰） |
| BART | Bay Area Rapid Transit | 港湾水域快速通行 |
| BART | blood activated recalcification time test | 血液活化再钙化时间试验 |
| BART | Billing and Analysis Reporting Tool (NASA) | 计费和分析报告工具（NASA） |
| BART | Biomedical and Robotics Technology (Lab; Mahidol University, Thailand) | 生物医学和机器人技术（实验室；泰国Mahidol大学） |
| BART | Bay Area Rapid Transit District | 港湾水域快速通行区 |
| BART | Bandwidth Available in Real-Time | 实时可用带宽 |
| BART | Biological Activity Reaction Test | 生物活性反应试验 |
| BART | Best Achievable Retrofit Technology | 可实现的最佳改造技术 |
| BART | Baronet (title of nobility below baron) | 男爵（男爵以下的贵族头衔） |
| BART | Beagles Are Really Terriffic | 小猎犬真的很可怕 |
| BART | Big Ass Red Truck (slang for a fire truck) | 大屁股红色卡车（消防车的俚语） |