| Surname | Forename | Rank | Killed | By | How Killed |
| Kay | Michael | R/Constable | 3-Apr-1985 | IRA | Killed by booby trap outside Newry Courthouse |
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| Kelly | Ivy | Constable | 28-Feb-1985 | IRA | Fatally wounded in mortar attack on Newry RUC Station |
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| Kennedy | Norman | Constable | 26-Jul-1987 | IRA | Shot dead in his Ballymena home as he watched television with his wife |
| | | | | |
| Kettles | Francis | R/Constable | 15-May-1976 | IRA | Fatally wounded when a booby trap bomb exploded near Belcoo RUC Station, Co. Fermanagh |
| | | | | |
| Keys | Harry | Sergeant | 15-May-1976 | IRA | Fatally wounded when a booby trap bomb exploded near Belcoo RUC Station, Co. Fermanagh |
| | | | | |
| Keys | Robert | Constable | 28-Nov-1972 | IRA | Killed during rocket attack on Belleek RUC Station. |
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| Kilpatrick | Peter | Sergeant | 26-Jul-1986 | IRA | Fatally injured in gun attack in Market Square ,Newry |
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| Kyle | Christopher | R/Constable | 17-Jun-1981 | IRA | Off duty, he was fatally wounded in gun attack at his home near Omagh |