| Surname | Forename | Rank | Killed | By | How Killed |
| Montgomery | Stephen | Constable | 28-Jan-1989 | IRA | Fatally wounded in drogue bomb attack at Melmont Road, Sion Mills |
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| Breen | Harry | C/Superintendent | 20-Mar-1989 | IRA | Fatally wounded in gun attack at Jonesborough as he returned from Dundalk Garda Station |
| | | | | |
| Buchanan | Robert | Superintendent | 20-Mar-1989 | IRA | Fatally wounded in gun attack at Jonesborough as he returned from Dundalk Garda Station |
| | | | | |
| Black | David | R/Constable | 27-Jun-1989 | IRA | Fatally wounded by booby trap bomb under his car in Londonderry |
| | | | | |
| Annett | Norman | Constable | 1-Jul-1989 | IRA | Fatally injured in gun attack on his mothers home in Garvagh |
| | | | | |
| Bell | Alexander | R/Constable | 24-Jul-1989 | IRA | Fatally injured in bomb attack between Waterfoot and Cushendall |
| | | | | |
| Harris | Alwyn | Superintendent | 8-Oct-1989 | IRA | Fatally injured by booby trap bomb under his car as he and his wife travelled to church |
| | | | | |
| Marshall | Michael | Constable | 20-Oct-1989 | IRA | Fatally wounded in gun attack in Belleek |
