| TIAA | Teachers Insurance and Annuity Association | 教师保险和年金协会 |
| TIAA | Travel Industry Association of America | 美国旅游业协会 |
| TIAA | Texas Insurance Advisory Association (statistical reporting agency in Texas) | 德克萨斯州保险咨询协会(德克萨斯州统计报告机构) |
| TIAA | Texas Independent Automotive Association | 德克萨斯州独立汽车协会 |
| TIAA | Total Inactive Aircraft Authorization | 非活动飞机总授权 |
| TIAA | This Is An Acronym | 这是首字母缩写 |
| TIAA | Total Immersion Assistance Avatar | 总沉浸式辅助化身 |