| Sport | Basketball |
|---|---|
| Founded | 1954 |
| First season | 1954–55 |
| Owner(s) | Hong Kong Basketball Association |
| No. of teams | 10 |
| Countries | Hong Kong |
| Continent | FIBA Asia (Asia) |
| Most recent champion(s) | Hong Kong Eastern (2nd title) (2023–24) |
| Most titles | South China (16 titles) |
| International cup(s) | Basketball Champions League Asia |
| Official website | HKBA |
Hong Kong A1 Division Championship (Chinese: 香港男子甲一組籃球聯賽), abbreviated as HKA1 and A1 Division, is the top division of men's basketball league in Hong Kong. The league was founded in 1954 and the inaugural season was held the same year. Currently, ten teams make up the league.
South China is the most successful team in league history with 16 titles.