2005–06 United Counties League

The 2005–06 United Counties League season was the 99th in the history of the United Counties League, a football competition in England.

Premier Division
The Premier Division featured 21 clubs which competed in the division last season, along with one new club:
 * St Ives Town, promoted from Division One

Division One
Division One featured 16 clubs which competed in the division last season, along with two new clubs:
 * Daventry Town, relegated from the Premier Division
 * Wellingborough Town, joined from the Northamptonshire Senior Youth League

Also, Eye United changed name to Peterborough Northern Star.