The 2011–12 United Counties League season (known as the 2011–12 ChromaSport & Trophies United Counties League for sponsorship reasons) was the 105th in the history of the United Counties League, a football competition in England.
The Premier Division featured 18 clubs which competed in the division last season, along with three new clubs:
Division One featured 15 clubs which competed in the division last season, along with two new clubs, relegated from the Premier Division: