By ship name
| Ship | Year | Origin | Destination |
| TARBOLTON OF NEWRY | 1834 | Dublin | Quebec |
| TARIFA | 1868 | Queenstown | New York |
| TAY | 1840 | Greenock | New York |
| TECHLA | 1851 | Londonderry | New York |
| TELEGRAPH | 1853 | Liverpool | New York |
| TEUTONIC | 1891 | Queenstown | New York |
| TEUTONIC | 1900 | Queenstown | New York |
| TEUTONIC | 1901 | Queenstown | New York |
| THOMAS B. WALES | 1850 | Liverpool | New Orleans |
| THOMAS GILSON | 1820 | Belfast | Charleston |
| TITANIC | 1912 | Queenstown | New York |
| TITANIC | 1912 | Queenstown | New York |
| TORONTO | 1845 | London | New York |
| TORONTO | 1851 | Tralee | New York |
| TRIDENT | 1825 | Londonderry | New York |
| TRIPOLI | 1866 | Queenstown | New York |
| TRIPOLI | 1868 | Queenstown | New York |
| TRUTH & DAYLIGHT | 1716 | Ireland | Boston |