| Irish Cup | |
| Year: | 1933–34 |
| Num Teams: | 16 |
| Defending Champions: | Glentoran |
| Winners: | Linfield (18th win) |
| Second: | Cliftonville |
| Matches: | 16 |
| Goals: | 72 |
| Prev Season: | 1932–33 |
| Next Season: | 1934–35 |
The 1933–34 Irish Cup was the 54th edition of the Irish Cup, the premier knock-out cup competition in Northern Irish football.
Linfield won the tournament for the 18th time, defeating Cliftonville 5–0 in the final at The Oval.[1] [2]
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