Sheets of Trinidad & Tobago, 1980
| Issuer | Date | Desc | State | ||
| - |  |
Trinidad & Tobago | 1/21/1980 | Princes Town 100th, sheet of 4 types | |
| - |  |
Trinidad & Tobago | 7/10/1980 | empty sheet (#9566) | incomplete |
| - |  |
Trinidad & Tobago | 9/8/1980 | 11th Commonwealth Forestry Conference, sheet of 4 types | incomplete |