| County Antrim Shield | |
| Year: | 1937–38 |
| Num Teams: | 11 |
| Defending Champions: | Belfast Celtic |
| Winners: | Linfield (18th win) |
| Second: | Ballymena United |
| Matches: | 11 |
| Goals: | 54 |
| Prev Season: | 1936–37 |
| Next Season: | 1938–39 |
The 1937–38 County Antrim Shield was the 49th edition of the County Antrim Shield, a cup competition in Northern Irish football.[1]
Linfield won the tournament for the 18th time, defeating Ballymena United 3–2 in the final at Grosvenor Park.[2] [3]
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1Belfast Celtic refused to play the replay and Linfield advanced to the final.