| Tournament information | |
|---|---|
| Dates | 8–10 March 1978 |
| Venue | Goffs |
| City | Kill |
| Country | Ireland |
| Organisation | WPBSA |
| Format | Non-Ranking event |
| Final | |
| Champion |  John Spencer |
| Runner-up |  Doug Mountjoy |
| Score | 5–3 |
← 1977 1979 → | |
The 1978 Irish Masters was the fourth edition of the professional invitational snooker tournament (and the first under the Irish Masters name) which took place in March 1978. The tournament was played at Goffs in Kill, County Kildare, and featured six professional players. The first round was played in two groups : Reardon, Spencer and Miles in Group A, Higgins, Mountjoy and Dennis Taylor in Group B. John Spencer won the title for the third time, beating Doug Mountjoy 5–3 in the final.
| RR play-off 1 frame | Semi-finals Best of 5 frames | Final Best of 9 frames | ||||||||||||
| John Spencer
| 3 | |||||||||||||
 Alex Higgins
| 1 | Alex Higgins
| 1 | |||||||||||
| Dennis Taylor
| 0 | John Spencer
| 5 | |||||||||||
| Doug Mountjoy
| 3 | |||||||||||||
| Doug Mountjoy
| 3 | |||||||||||||
| Ray Reardon
| 2 | |||||||||||||
