| Irish Cup | |
| Year: | 1948–49 |
| Num Teams: | 16 |
| Defending Champions: | Linfield |
| Winners: | Derry City (1st win) |
| Second: | Glentoran |
| Matches: | 21 |
| Goals: | 70 |
| Prev Season: | 1947–48 |
| Next Season: | 1949–50 |
The 1948–49 Irish Cup was the 69th edition of the Irish Cup, the premier knock-out cup competition in Northern Irish football.
The defending champions were Linfield, after they defeated Coleraine 3–0 in the 1947–48 final.[1] However, they went out in the first round after a 2–0 defeat to Glentoran.
Derry City went on to win the cup for the first time, defeating the Glens 3–1 in the final.[2]
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