1985–86 United Counties League

The 1985–86 United Counties League season was the 79th in the history of the United Counties League, a football competition in England.

Premier Division
The Premier Division featured 20 clubs which competed in the division last season, along with one new club:
 * Northampton Spencer, promoted from Division One

Division One
Division One featured 15 clubs which competed in the division last season, along with five new clubs:
 * Baker Perkins, joined from the Peterborough and District League
 * Cogenhoe United, joined from the Northamptonshire Combination
 * Ramsey Town, joined from the Peterborough and District League
 * St Ives Town, joined from the Peterborough and District League
 * Wellingborough Whitworth, joined from the East Midlands Alliance