The 2011–12 Spartan South Midlands Football League season is the 15th in the history of Spartan South Midlands Football League a football competition in England.
The Premier Division featured 20 clubs which competed in the division last season, along with two clubs promoted from Division One: Also, Kingsbury London Tigers changed name to London Tigers.
Division One featured 18 clubs which competed in the division last season, along with four new clubs:
Division Two featured 13 clubs which competed in the division last season, along with one new club: