| 02 January 1984 | Robert Elliott (25) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot outside his home, Lislaird Road, Castlederg, County Tyrone. |
| 10 January 1984 | William Fullerton (48) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Off duty. Shot by sniper while driving his car along Warrenpoint Road, Newry, County Down. |
| 20 January 1984 | Colin Houston (30) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish National Liberation Army (INLA) Off duty. Shot at his home, Sunnymede Avenue, Dunmurry, near Belfast, County Antrim. |
| 27 January 1984 | Daniel McIntyre (28) Catholic Status: Civilian (Civ), Killed by: Ulster Volunteer Force (UVF) Shot from passing car while walking along Manor Drive, Lurgan, County Armagh. |
| 30 January 1984 | Mark Marron (23) Catholic Status: Civilian (Civ), Killed by: British Army (BA) Shot while travelling in stolen car, Springfield Road, Belfast. |
| 31 January 1984 | William Savage (27) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Royal Ulster Constabulary (RUC) armoured patrol car, near Forkhill, County Armagh. |
| 31 January 1984 | Thomas Bingham (29) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Royal Ulster Constabulary (RUC) armoured patrol car, near Forkhill, County Armagh |
| 13 February 1984 | James Young (41) Catholic Status: Irish Republican Army (IRA), Killed by: Irish Republican Army (IRA) Found shot near Crossmaglen, County Armagh. Alleged informer. |
| 21 February 1984 | Paul Oram (26) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Killed in gun battle between undercover British Army (BA) members and Irish Republican Army (IRA) members, Dunloy, near Ballymoney, County Antrim. |
| 21 February 1984 | Declan Martin (18) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Killed in gun battle between undercover British Army (BA) members and Irish Republican Army (IRA) members, Dunloy, near Ballymoney, County Antrim. |
| 21 February 1984 | Henry Hogan (21) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Killed in gun battle between undercover British Army (BA) members and Irish Republican Army (IRA) members, Dunloy, near Ballymoney, County Antrim. |
| 02 March 1984 | Thomas Loughlin (40) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Killed by booby trap bomb, attached to his van, outside his home, Castlederg, County Tyrone. |
| 03 March 1984 | Herbert Burrows (37) Protestant Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Killed by booby trap bomb attached to garage door, at his workplace, Alexander Road, Armagh. |
| 06 March 1984 | William McConnell (35) Protestant Status: Prison Officer (PO), Killed by: Irish Republican Army (IRA) Off duty. Shot outside his home, Hawthornden Drive, Belmont, Belfast. |
| 08 March 1984 | David Montgomery (24) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot at his workplace, a petrol station, Airport Road, near Moira, County Down. |
| 13 March 1984 | Ronald Funston (28) Protestant Status: ex-Ulster Defence Regiment (xUDR), Killed by: Irish Republican Army (IRA) Shot at his farm, near Pettigoe, County Fermanagh. |
| 27 March 1984 | David Ross (31) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Killed by remote controlled bomb, hidden in parked van, detonated when British Army (BA) civilian-type mini bus passed, near Gransha Hospital, Clooney Road, Derry. |
| 08 April 1984 | Mary Travers (22) Catholic Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot during gun attack on her Resident Magistrate father, Thomas Travers, shortly after leaving St Brigid's Roman Catholic Church, while walking along Windsor Avenue, Malone, Belfast. |
| 12 April 1984 | Margaret Whyte (51) Catholic Status: Civilian (Civ), Killed by: non-specific Loyalist group (LOY) Killed by time bomb left on the windowsill of her home, University Street, Belfast. |
| 12 April 1984 | Michael Dawson (23) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: non-specific Loyalist group (LOY) Killed by time bomb left on the windowsill of Margaret Whyte's home, University Street, Belfast. |
| 13 April 1984 | John George (26) Catholic Status: Civilian (Civ), Killed by: Irish National Liberation Army (INLA) Shot at his home, Thornhill Crescent, Twinbrook, Belfast. Alleged criminal. |
| 21 April 1984 | Richard Quigley (20) Catholic Status: Irish Republican Army (IRA), Killed by: Irish Republican Army (IRA) Killed by flying shrapnel while involved in remote controlled bomb attack on British Army (BA) mobile patrol, Foyle Street, Derry. |
| 23 April 1984 | Neil Clarke (21) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Shot by sniper, while on British Army (BA) mobile patrol, Bishop Street, Derry. |
| 29 April 1984 | Thomas McGeary (48) Catholic Status: Civilian (Civ), Killed by: non-specific Republican group (REP) Killed by booby trap bomb attached to his car, while driving along Old Moy Road, Drumarn, near Armagh. |
| 08 May 1984 | James Johnstone (28) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot in in car park at his workplace, Drumglass Hospital, Dungannon, County Tyrone. |
| 09 May 1984 | Trevor May (28) Protestant Status: British Army Territorial Army (TA), Killed by: Irish Republican Army (IRA) Off duty. Killed by booby trap bomb while travelling in his car shortly after leaving his workplace, Telephone Exchange, Downshire Road, Newry, County Down. |
| 12 May 1984 | Ivan Hillen (46) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot at his farm, Lismore, near Augher, County Tyrone. |
| 14 May 1984 | Seamus Fitzsimmons (21) Catholic Status: Civilian (Civ), Killed by: Royal Ulster Constabulary (RUC) Shot by undercover Royal Ulster Constabulary (RUC) members during attempted robbery at Post Office, Ballygalley, near Larne, County Antrim. |
| 18 May 1984 | Trevor Elliott (28) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Royal Ulster Constabulary (RUC) armoured patrol car, Lislea, near Camlough, County Armagh. |
| 18 May 1984 | Neville Gray (25) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Royal Ulster Constabulary (RUC) armoured patrol car, Lislea, near Camlough, County Armagh |
| 18 May 1984 | Thomas Agar (35) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Off duty. Killed by booby trap bomb attached to his car, outside Lakeland Forum Leisure Centre, Enniskillen, County Fermanagh. |
| 18 May 1984 | Robert Huggins (29) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Off duty. Killed by booby trap bomb attached to his car, outside Lakeland Forum Leisure Centre, Enniskillen, County Fermanagh. |
| 18 May 1984 | Peter Gallimore (27) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Off duty. Injured by booby trap bomb attached to his car, outside Lakeland Forum Leisure Centre, Enniskillen, County Fermanagh. He died 18 October 1984 |
| 29 May 1984 | Stephen Anderson (22) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Killed in land mine attack on British Army (BA) foot patrol, near Crossmaglen, County Armagh. |
| 03 June 1984 | Hugh Gallagher (26) Catholic Status: ex-Ulster Defence Regiment (xUDR), Killed by: Irish Republican Army (IRA) Taxi driver. Found shot in his car, Faccary Road, Loughmacrory, near Omagh, County Tyrone. |
| 04 June 1984 | David Chambers (34) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot by sniper while travelling on motorcycle to his workplace, Dollingstown, near Lurgan, County Down. |
| 09 June 1984 | James Campbell (33) Catholic Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot while in Pound Loney Social Club, Conway Street, Lower Falls, Belfast. Alleged criminal. |
| 15 June 1984 | Michael Todd (22) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish National Liberation Army (INLA) Shot during gun battle after Royal Ulster Constabulary (RUC) members surrounded house, Lenadoon Avenue, Belfast. |
| 15 June 1984 | Paul McCann (20) Catholic Status: Irish National Liberation Army (INLA), Killed by: Royal Ulster Constabulary (RUC) Shot during gun battle after Royal Ulster Constabulary (RUC) members surrounded house, Lenadoon Avenue, Belfast |
| 09 July 1984 | Anthony McAtarsney (37) Catholic Status: Civilian (Civ), Killed by: Ulster Volunteer Force (UVF) Shot while getting into his car shortly after leaving work, Millfield, Belfast |
| 13 July 1984 | William Price (28) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Shot by undercover British Army (BA) members, during attempted incendiary bomb attack on factory, Ardboe, County Tyrone. |
| 14 July 1984 | Norman McKinley (32) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Ulster Defence Regiment foot patrol, near Castlederg, County Tyrone. |
| 14 July 1984 | Heather Kerrigan (20) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Ulster Defence Regiment foot patrol, near Castlederg, County Tyrone |
| 26 July 1984 | Brian McNally (25) Catholic Status: Irish Republican Army (IRA), Killed by: Irish Republican Army (IRA) Found shot near Meigh, County Armagh. Alleged informer. |
| 08 August 1984 | Brendan Watters (24) Catholic Status: Irish Republican Army (IRA), Killed by: Irish Republican Army (IRA) Died in premature bomb explosion in house, Barcroft Park, Newry, County Down. |
| 10 August 1984 | Benjamin Redfern (32) Protestant Status: Ulster Defence Association (UDA), Killed by: not known (nk) Crushed to death in back of refuse lorry during attempted escape from Long Kesh / Maze Prison, County Down. |
| 10 August 1984 | Francis Hand (26) nfNIRI Status: Garda Siochana (GS), Killed by: Irish Republican Army (IRA) Shot during attempted armed robbery at post office, Drumcree, County Meath. |
| 12 August 1984 | Sean Downes (22) Catholic Status: Civilian (Civ), Killed by: Royal Ulster Constabulary (RUC) Shot by plastic bullet, during anti-internment march, Andersonstown Road, Belfast. |
| 12 August 1984 | Malcolm White (26) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Royal Ulster Constabulary (RUC) mobile patrol, Crockanboy, Greencastle, County Tyrone. |
| 07 September 1984 | Robert Bennett (45) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot at his workplace, a timber yard, Ballygawley Road, Dungannon, County Tyrone. |
| 07 September 1984 | Malcolm Cullen (23) Protestant Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot at his workplace, a timber yard, Ballygawley Road, Dungannon, County Tyrone. With off duty Ulster Defence Regiment member at the time. |
| 08 October 1984 | Melvin Simpson (40) Protestant Status: ex-Ulster Defence Regiment (xUDR), Killed by: Irish Republican Army (IRA) Shot at his workplace, building site, Ann Street, Dungannon, County Tyrone. |
| 12 October 1984 | Anthony Berry (59) nfNIB Status: Civilian Political Activist (CivPA), Killed by: Irish Republican Army (IRA) Member of Parliament. Killed in time bomb attack at Conservative Party Conference, Grand Hotel, Brighton, Sussex, England. |
| 12 October 1984 | Eric Taylor (54) nfNIB Status: Civilian Political Activist (CivPA), Killed by: Irish Republican Army (IRA) Member of Conservative Party. Killed in time bomb attack at Conservative Party Conference, Grand Hotel, Brighton, Sussex, England. |
| 12 October 1984 | Roberta Wakeham (45) nfNIB Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Killed in time bomb attack at Conservative Party Conference, Grand Hotel, Brighton, Sussex, England. |
| 12 October 1984 | Jeanne Shattock (52) nfNIB Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Killed in time bomb attack at Conservative Party Conference, Grand Hotel, Brighton, Sussex, England. |
| 12 October 1984 | Muriel MacLean (54) nfNIB Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Injured in time bomb attack at Conservative Party Conference, Grand Hotel, Brighton, Sussex, England. She died 13th November 1984 |
| 19 October 1984 | Fred Jackson (48) Protestant Status: Civilian (Civ), Killed by: British Army (BA) Shot by undercover British Army (BA) member, during attempted ambush of Irish Republican Army (IRA) unit, Tamnamore, near Dungannon, County Tyrone. |
| 19 October 1984 | Timothy Utteridge (19) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Shot by sniper while on British Army (BA), foot patrol, Norglen Road, Turf Lodge, Belfast. |
| 31 October 1984 | Harry Muldoon (45) Catholic Status: Civilian (Civ), Killed by: Ulster Volunteer Force (UVF) Shot at his home, Mountainview Drive, off Crumlin Road, Belfast. |
| 16 November 1984 | Patrick Brady (36) Catholic Status: Civilian Political Activist (CivPA), Killed by: Ulster Freedom Fighters (UFF) Sinn Fein (SF) member. Shot at his workplace, a dairy, Boucher Road, Belfast. |
| 23 November 1984 | William McLaughlin (25) Catholic Status: Civilian Political Activist (CivPA), Killed by: Protestant Action Force (PAF) Sinn Fein (SF) activist. Shot, shortly after leaving Department of Health and Social Services office, Church Road, Newtownabbey, County Antrim. |
| 02 December 1984 | Alistair Slater (28) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Shot during gun battle between undercover British Army (BA) unit and Irish Republican Army (IRA) unit, near Kesh, County Fermanagh. |
| 02 December 1984 | Antoine MacGiolla Bhrighde (27) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Shot during gun battle between undercover British Army (BA) unit and Irish Republican Army (IRA) unit, near Kesh, County Fermanagh. |
| 02 December 1984 | Kieran Fleming (26) Catholic Status: Irish Republican Army (IRA), Killed by: not known (nk) Drowned in Bannagh River, near Kesh, County Fermanagh. Escaping from gun battle between undercover British Army (BA) unit and Irish Republican Army (IRA) unit. |
| 06 December 1984 | William Fleming (19) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Shot by undercover British Army (BA) members while travelling on motorcycle in the grounds of Gransha Hospital, off Clooney Road, Derry. |
| 06 December 1984 | Daniel Doherty (23) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Shot by undercover British Army (BA) members, while travelling on motorcycle in the grounds of Gransha Hospital, off Clooney Road, Derry. |
| 17 December 1984 | Sean McIlvenna (33) Catholic Status: Irish Republican Army (IRA), Killed by: Royal Ulster Constabulary (RUC) Shot shortly after being involved in land mine attack on British Army (BA) mobile patrol, near Blackwatertown, County Armagh. |