The 2002–03 Hellenic Football League season was the 50th in the history of the Hellenic Football League, a football competition in England.
| Competition: | Hellenic Football League Premier Division |
| Season: | 2002–03 |
| Winners: | North Leigh |
| Promoted: | Yate Town |
| Relegated: | Wantage Town |
| Matches: | 420 |
| Total Goals: | 1299 |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
The Premier Division featured 19 clubs which competed in the division last season, along with two new clubs, promoted from Division One West:
| Competition: | Hellenic Football League Division One East |
| Season: | 2002–03 |
| Winners: | Quarry Nomads |
| Matches: | 272 |
| Total Goals: | 941 |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
Division One East featured 16 clubs which competed in the division last season, along with two clubs:
| Competition: | Hellenic Football League Division One West |
| Season: | 2002–03 |
| Winners: | Slimbridge |
| Promoted: | Slimbridge Chipping Norton Town |
| Matches: | 380 |
| Total Goals: | 1301 |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
Division One West featured 14 clubs which competed in the division last season, along with six new clubs: