The 1986–87 season was the 16th in the history of Essex Senior Football League, a football competition in England.[1]
The league featured 15 clubs which competed in the league last season, along with two new clubs:
Canvey Island were champions, winning their first Essex Senior League title, while Witham Town were promoted to the Isthmian League.
| Competition: | Essex Senior Football League |
| Season: | 1986–87 |
| Winners: | Canvey Island |
| Promoted: | Witham Town |
| Matches: | 272 |
| Total Goals: | 828 |
| Prevseason: | 1985–86 |
| Nextseason: | 1987–88 |