The 2015–16 United Counties League season (known as the 2015–16 ChromaSport & Trophies United Counties League for sponsorship reasons) was the 109th in the history of the United Counties League, a football competition in England.
| Competition: | United Counties League Premier Division |
| Season: | 2015–16 |
| Winners: | Kempston Rovers |
| Promoted: | Kempston Rovers |
| Matches: | 462 |
| Total Goals: | 1616 |
| Prevseason: | 2014–15 |
| Nextseason: | 2016–17 |
The Premier Division featured 19 clubs which competed in the division last season, along with three new clubs:
In addition, Thurnby Nirvana changed their name to Leicester Nirvana.
Three clubs have applied for promotion to Step 4: AFC Kempston Rovers, Kirby Muxloe and Leicester Nirvana.[1]
| Competition: | United Counties League Division One |
| Season: | 2015–16 |
| Winners: | Peterborough Sports |
| Promoted: | Peterborough Sports Northampton ON Chenecks |
| Matches: | 342 |
| Total Goals: | 1298 |
| Prevseason: | 2014–15 |
| Nextseason: | 2016–17 |
Division One featured 18 clubs which competed in the division last season, along with two new clubs:
All Games and results involving St Neots Town Saints have all been annulled.