1988–89 Eastern Counties Football League

The 1988–89 season was the 47th in the history of Eastern Counties Football League a football competition in England.

It was the first season the league consisted of two divisions. Sudbury Town were champions, winning their sixth Eastern Counties Football League title.

Premier Division
The Premier Division featured 21 clubs which competed in the Eastern Counties League last season, no new clubs joined the division this season.

Division One
It was the first Division One season, it was formed by:
 * Clubs joined from the Peterborough and District League:
 * Coalite Yaxley
 * Downham Town
 * Huntingdon United
 * Long Sutton Athletic
 * Somersham Town
 * Warboys Town
 * Clubs joined from the Anglian Combination:
 * Diss Town
 * Fakenham Town
 * Wroxham
 * Plus:
 * Bury Town reserves
 * Halstead Town, transferred from the Essex Senior League
 * King's Lynn reserves
 * Loadwell Wanderers, joined from the Ipswich Sunday League
 * Mildenhall Town, joined from the Cambridgeshire County League