The 2001–02 season was the 31st 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 one new club:
Leyton were champions, winning their first Essex Senior League title and were promoted to the Isthmian League.
| Competition: | Essex Senior Football League |
| Season: | 2001–02 |
| Winners: | Leyton |
| Promoted: | Leyton |
| Matches: | 240 |
| Total Goals: | 873 |
| Prevseason: | 2000–01 |
| Nextseason: | 2002–03 |