| T-Test | Trailing 12 Months (TTM) |
| Tariff | Tranches |
| Technical Analysis | Transaction |
| Tenancy in Common (TIC) | Treasury Bills (T-Bills) |
| Term Life Insurance | Treasury Inflation-Protected Security (TIPS) |
| Terminal Value (TV) | Triple Bottom Line (TBL) |
| Third World | Troubled Asset Relief Program (TARP) |
| Total-Debt-to-Total-Assets | Trust |
| Total Expense Ratio (TER) | Trust Fund |
| Total Quality Management (TQM) | Trustee |
| Total Shareholder Return (TSR) | TSA PreCheck |
| Trade Deficit | Turnover |