| Competition: | Hong Kong Second Division League |
| Season: | 2015–16 |
| Winners: | Tung Sing |
| Promoted: | Tung Sing Eastern District |
| Relegated: | Tsuen Wan Happy Valley |
| Matches: | 132 |
| Total Goals: | 414 |
| Prevseason: | 2014–15 |
| Nextseason: | 2016–17 |
The 2015–16 Hong Kong Second Division League is the 2nd season of Hong Kong Second Division League since it became the third-tier football league in Hong Kong in 2014–15.
The league started on 13 September 2015 and ended on 8 May 2016.
Promoted to First Division
Relegated to Third Division
Withdrew from league
Relegated from First Division
Promoted from Third Division