| Competition: | Tongan A Grade |
| Season: | 1980-81 |
| Winners: | 'Atenisi |
| Prevseason: | 1979 |
| Nextseason: | 1982 |
The 1980–81 season of the Tongan A Grade was the 8th season of top flight association football competition in Tonga. 'Atenisi won the championship for the first time.[1] It is unclear whether this title was for the 1980, 1980/81 or 1981 season, as the 1981 season may or may not have occurred.