| Competition: | Hong Kong First Division |
| Season: | 1920–21 |
| Winners: | Wiltshire Regiment (1st title) |
| Prevseason: | 1919 - 20 |
| Nextseason: | 1921 - 22 |
The 1920–21 Hong Kong First Division season was the 13th since its establishment.
Wiltshire Regiment won the title.