The 1986–87 Hellenic Football League season was the 34th in the history of the Hellenic Football League, a football competition in England.
| Competition: | Hellenic Football League Premier Division |
| Season: | 1986–87 |
| Winners: | Abingdon Town |
| Promoted: | Hounslow |
| Relegated: | Wantage Town |
| Matches: | 306 |
| Total Goals: | 931 |
| Prevseason: | 1985–86 |
| Nextseason: | 1987–88 |
The Premier Division featured 16 clubs which competed in the division last season, along with two new clubs, promoted from Division One:
| Competition: | Hellenic Football League Division One |
| Season: | 1986–87 |
| Winners: | Bishop's Cleeve |
| Promoted: | Bishop's Cleeve Didcot Town |
| Matches: | 306 |
| Total Goals: | 960 |
| Prevseason: | 1985–86 |
| Nextseason: | 1987–88 |
Division One featured twelve clubs which competed in the division last season, along with six new clubs: