| County Antrim Shield | |
| Year: | 2002–03 |
| Num Teams: | 16 |
| Defending Champions: | Glentoran |
| Champions: | Glentoran (24th win) |
| Runner-Up: | Ballymena United |
| Matches: | 15 |
| Goals: | 60 |
| Prevseason: | 2001–02 |
| Nextseason: | 2003–04 |
The 2002–03 County Antrim Shield was the 114th edition of the County Antrim Shield, a cup competition in Northern Irish football.[1]
Glentoran won the tournament for the 24th time and 2nd consecutive season, defeating Ballymena United 3–0 in the final.[2] [3]
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