| Competition: | Hong Kong First Division League |
| Season: | 2015–16 |
| Winners: | Tai Po |
| Promoted: | Tai Po HKFC |
| Relegated: | Sun Source Lucky Mile |
| League Topscorer: | Detinho (Easyknit Property) (28 goals) |
| Matches: | 182 |
| Total Goals: | 630 |
| Prevseason: | 2014–15 |
| Nextseason: | 2016–17 |
The 2015–16 Hong Kong First Division League is the 2nd season of Hong Kong First Division League since it became the second-tier football league in Hong Kong in 2014–15.
The league started on 6 September 2015 and ended on 15 May 2016.
Promoted to Premier League
Relegated to Second Division
Relegated from Premier League
Promoted from Second Division
A total of 14 teams will contest the league, including 12 sides from the 2014–15, 1 team relegated from the Premier League and 1 side promoted from the Second Division.
| Club | Position in 2014–15 | Member since season | Consecutive season in league | |
|---|---|---|---|---|
| Citizen | 5th | 2014–15 | 2 | |
| Double Flower | 11th | 2002–03 | 14 | |
| HKFC | 2nd | 2011–12 | 5 | |
| Kwai Tsing | 7th | 2013–14 | 3 | |
| Kwun Tong | 10th | 2013–14 | 3 | |
| Lucky Mile | 6th | 2013–14 | 3 | |
| Sun Source | 1st1 | 2014–15 | 2 | |
| Shatin | 9th | 2010–11 | 6 | |
| Sun Hei | 8th | 2014–15 | 2 | |
| Tai Chung | 13th | 2011–12 | 5 | |
| Tai Po | 9th in Premier League | 2015–16 | 1 | |
| Wanchai | 12th | 2011–12 | 5 | |
| Easyknit Property | 1st in Second Division | 2015–16 | 1 | |
| Yau Tsim Mong | 4th | 2014–15 | 2 |
Remarks:
1Due to financial difficulties, Metro Gallery Sun Source refused to promote to the Premier League.