2019–20 Eastern Counties Football League

The 2019–20 season was the 77th season in the history of Eastern Counties Football League, a football competition in England. Teams are divided into three divisions, the Premier Division, Division One North and Division One South.

As a result of the COVID-19 pandemic, this season's competition was formally abandoned on 26 March 2020, with all results from the season being expunged, and no promotion or relegation taking place to, from, or within the competition. On 30 March 2020, sixty-six non-league clubs sent an open letter to the Football Association requesting that they reconsider their decision. A legal appeal against the decision, funded by the Northern Premier League's South Shields, was dismissed later in June.

Premier Division
The Premier Division featured 17 clubs which competed in the division last season, along with three new clubs:
 * Mildenhall Town, relegated from the Isthmian League
 * Stanway Rovers, transferred from the Essex Senior League
 * Swaffham Town, promoted from Division One North

Division One North
Division One North featured 17 clubs which competed in the division last season, along with three new clubs:
 * Framlingham Town, relegated from the Premier Division
 * Great Yarmouth Town, relegated from the Premier Division
 * Sheringham, promoted from the Anglian Combination

Division One South
Division One South featured 17 clubs which competed in the division last season, along with three new clubs, relegated from the Essex Senior League:
 * Barkingside
 * Leyton Athletic