| TRIS | Transportation Rate Information System | 运输费率信息系统 |
| TRIS | Transportation Research Information Service (US Dept. of Transportation) | 交通研究信息服务(美国交通部) |
| TRIS | Toxic Chemical Release Inventory System | 有毒化学品释放清单系统 |
| TRIS | Training Records Information System | 培训记录信息系统 |
| TRIS | Transportation Research Information Services | 交通研究信息服务 |
| TRIS | Tri-State | 三态 |
| TRIS | Tris(Hydroxymethyl)aminomethane | 三(羟甲基)氨基甲烷 |
| TRIS | Transportation Research Information Service | 交通研究信息服务 |
| TRIS | Traffic and Road Information System (Canada) | 交通和道路信息系统(加拿大) |
| TRIS | Telephone Routing Interactive System | 电话路由交互系统 |
| TRIS | Trapped Ions in Space (experiment) | 空间中的俘获离子(实验) |
| TRIS | Training Requirements & Information System | 培训需求和信息系统 |