1930–31 Irish Cup

The 1930–31 Irish Cup was the 51st edition of the Irish Cup, the premier knock-out cup competition in Northern Irish football.

In a repeat of the previous season's final, Linfield won the tournament for the 17th time, defeating Ballymena 3–0 in the final at The Oval.

First round

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Quarter-finals

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Replay

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Semi-finals

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