| Organising body | Connacht Senior League |
|---|---|
| Founded | 1981 |
| Region |  Connacht |
| Most successful club(s) | Mervue United (6) |
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The Connacht Senior League Challenge Cup was an association football cup competition featuring teams from the Connacht Senior League. It was the senior league cup competition of the Connacht Senior League between 1981 and 2000. It was later remained the Connacht Senior League Premiership Cup and in its final season was known as the Connacht Senior League Millennium Cup. The inaugural winners were Mervue United who also went on to become the competition's most successful club, winning the cup six times in total.