| TISA | Telecom Industries Service Association (India) | 电信行业服务协会（印度） |
| TISA | Trent International Student Association | 特伦特国际学生协会 |
| TISA | Tax Incentivised Savings Association (UK) | 税收激励储蓄协会（英国） |
| TISA | Traveller Information Services Association | 旅行者信息服务协会 |
| TISA | Tottenham Independent Supporters' Association (UK) | 托特纳姆热刺的独立的支持者协会(英国) |
| TISA | Top Image Systems, Ltd. (stock symbol; formerly TPM) | Top Image Systems，Ltd.（股票代码；原名TPM） |
| TISA | Total Interior Systems of America | 美国总内部系统 |
| TISA | Truth in Savings Act of 1991 | 1991年储蓄真相法案 |
| TISA | Time Interpolation and Spatial Averaging | 时间插值和空间平均 |
| TISA | Transitional Islamic State of Afghanistan | 阿富汗过渡伊斯兰国 |
| TISA | Technique for Interactive Systems Analysis | 交互式系统分析技术 |
| TISA | Top Image Systems, LTD. | Top Image Systems有限公司。 |
| TISA | Timeshare Institute Of South Africa | 南非分时研究所 |
| TISA | Troop Issue Subsistence Activity | 部队发放生活费活动 |
| TISA | Test, Inhibit, Squelch, Act | 测试、抑制、静噪、动作 |
| TISA | Temporal Interpolation and Spatial Averaging | 时间插值和空间平均 |