1998–99 Eastern Counties Football League

The 1998–99 season was the 57th in the history of Eastern Counties Football League a football competition in England.

Wroxham were champions for the third season in a row, winning their sixth Eastern Counties Football League title.

Premier Division
The Premier Division featured 20 clubs which competed in the division last season, along with two new clubs, promoted from Division One:
 * Ipswich Wanderers
 * Maldon Town

Division One
Division One featured 15 clubs which competed in the division last season, along with three new clubs:
 * Clacton Town, relegated from the Premier Division
 * Dereham Town, joined from the Anglian Combination
 * Tiptree United, relegated from the Premier Division