2018 Inter-Provincial Cup
| Dates | 28 May 2018 – 9 September 2018 |
|---|---|
| Administrator(s) | Cricket Ireland |
| Cricket format | List A |
| Tournament format(s) | Round-robin |
| Champions | Leinster Lightning |
| Participants | 3 |
| Matches | 6 |
| Most runs | George Dockrell (231) |
| Most wickets | George Dockrell (10) |
The 2018 Inter-Provincial Cup was the sixth edition of the Inter-Provincial Cup, a List A cricket competition played in Ireland. It was held from 28 May to 9 September 2018. It is the second edition of the competition to be played with List A status. Leinster Lightning were the defending champions.
In the second match of the tournament, between Leinster Lightning and Northern Knights, Simi Singh and George Dockrell of Leinster Lightning set a new record partnership in List A cricket for the seventh wicket, with 215 runs.
Leinster Lightning retained their title, after beating North West Warriors by 58 runs in the final match of the tournament.