| Club: | Oldham Athletic |
| Season: | 2002–03 |
| Manager: | Iain Dowie |
| Chairman: | David Brierley |
| Stadium: | Boundary Park |
| League: | Second Division |
| League Result: | 5th |
| Cup2: | FA Cup |
| Cup2 Result: | Second round |
| Cup3: | League Cup |
| Cup3 Result: | Fourth round |
| Cup4: | Auto Windscreens Shield |
| Cup4 Result: | First round |
| League Topscorer: | David Eyres (13) |
| Season Topscorer: | David Eyres (16) |
| Pattern La1: | _whiteborder |
| Pattern B1: | _whitearc |
| Pattern Ra1: | _whiteborder |
| Pattern So1: | _whitestripe |
| Leftarm1: | 0000ff |
| Body1: | 0000ff |
| Rightarm1: | 0000ff |
| Shorts1: | 0000ff |
| Socks1: | 0000ff |
| Pattern B2: | _vnecknavy |
| Pattern La2: | _navyborder |
| Leftarm2: | 800020 |
| Body2: | 800020 |
| Pattern Ra2: | _navyborder |
| Rightarm2: | 800020 |
| Pattern Sh2: | _goldsides |
| Shorts2: | 800020 |
| Pattern So2: | _band_claret |
| Socks2: | 000000 |
| Pattern B3: | _vnecknavy |
| Leftarm3: | FFFFFF |
| Body3: | FFFFFF |
| Rightarm3: | FFFFFF |
| Shorts3: | FFFFFF |
| Socks3: | FFFFFF |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
During the 2002–03 English football season, Oldham Athletic A.F.C. competed in the Football League Second Division.
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See main article: 2002–03 in English football.
See main article: 2002–03 FA Cup.
See main article: 2002-03 Football League Cup.
See main article: 2002–03 Football League Trophy.
https://www.11v11.com/teams/oldham-athletic/tab/matches/season/2003/