| 06 January 1983 | Eric Brown (41) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Shot while sitting in stationary Royal Ulster Constabulary (RUC) civilian-type car, Bridge street, Rostrevor, County Down. |
| 06 January 1983 | Brian Quinn (23) Catholic Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Shot while sitting in stationary Royal Ulster Constabulary (RUC) civilian-type car, Bridge street, Rostrevor, County Down. |
| 08 January 1983 | Thomas Edgar (28) Protestant Status: Ulster Defence Association (UDA), Killed by: Ulster Defence Association (UDA) Found shot in house, Woodvale Road, Belfast. Internal Ulster Defence Association dispute. |
| 16 January 1983 | William Doyle (55) Catholic Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Judge. Shot outside St Brigid's Roman Catholic Church, Derryvolgie Avenue, Malone, Belfast. |
| 18 January 1983 | John Olphert (39) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Off duty reservist. Shot at his supermarket, Nelson Drive, Caw, Derry. |
| 20 January 1983 | Frank McColgan (31) Catholic Status: Civilian (Civ), Killed by: Royal Ulster Constabulary (RUC) Shot during car chase, shortly after being involved in robbery, Black's Road, Dunmurry, near Belfast, County Antrim. |
| 02 February 1983 | Eugene McMonagle (24) Catholic Status: Irish National Liberation Army (INLA), Killed by: British Army (BA) Shot by undercover British Army (BA) member during altercation, Leafair Park, Shantallow, Derry. |
| 19 February 1983 | Alan Price (53) Protestant Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot while delivering mail, Arney, near Enniskillen, County Fermanagh. Usual postman, off-duty Ulster Defence Regiment member the intended target. |
| 20 February 1983 | Edward Magill (20) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Shot from passing car while standing outside Warrenpoint Royal Ulster Constabulary (RUC) base, County Down. |
| 21 February 1983 | Gordon Wilson (29) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed by remote controlled bomb, hidden in derelict building, while on Royal Ulster Constabulary (RUC) foot patrol, Lower English Street, Armagh. |
| 25 February 1983 | Cecil McNeill (22) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot at his workplace, Ballygawley, County Tyrone. |
| 02 March 1983 | Lindsay McCormack (49) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Shot while on Royal Ulster Constabulary (RUC) foot patrol, Serpentine Road, Greencastle, Belfast. |
| 09 March 1983 | James Hogg (23) Protestant Status: Civilian (Civ), Killed by: non-specific Republican group (REP) Shot while renovating houses, Dobbin Lane, Armagh. |
| 11 March 1983 | Eamon Kerr (33) Catholic Status: Civilian Political Activist (CivPA), Killed by: not known (nk) Workers' Party (WP) member. Shot at his home, Cape Street, Lower Falls, Belfast. |
| 15 March 1983 | Frederick Morton (59) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Off duty reservist. Shot during ambush while driving his bread van, Tandragee Road, Newry, County Down. |
| 16 March 1983 | William Miller (26) Protestant Status: Ulster Volunteer Force (UVF), Killed by: Royal Ulster Constabulary (RUC) Shot while travelling in stolen car, Elmwood Avenue, off University Road, Belfast. |
| 02 April 1983 | Sean McConville (22) Catholic Status: Civilian (Civ), Killed by: non-specific Loyalist group (LOY) Beaten to death, while walking along Distillery Hill, Lurgan, County Armagh. |
| 03 April 1983 | James McCormick (45) Protestant Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot at his home, Balligan Gardens, Kilcooley, Bangor, County Down. |
| 07 April 1983 | Gerald Jeffrey (28) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Died eight days after being injured by remote controlled bomb while on British Army (BA) foot patrol, Falls Road, Belfast. |
| 09 April 1983 | Richard Biddle (20) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Off duty. Killed by booby trap bomb attached to his car, in car park off High Street, Omagh, County Tyrone. |
| 13 April 1983 | Trevor Elliott (38) Protestant Status: British Army Territorial Army (TA), Killed by: Irish Republican Army (IRA) Off duty. Shot at his shop, Keady, County Armagh. |
| 30 April 1983 | David Galway (61) Protestant Status: Civilian (Civ), Killed by: Ulster Volunteer Force (UVF) School Caretaker. Shot during armed robbery at Downey House Preparatory School, Pirrie Park, Belfast. |
| 07 May 1983 | Eric Dale (43) Catholic Status: Irish National Liberation Army (INLA), Killed by: Irish National Liberation Army (INLA) Found shot, Clontygora, near Killeen, County Armagh. Alleged informer. |
| 10 May 1983 | Alice Purves (47) Catholic Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot during gun attack on her husband, an off duty British Army (BA) member, at her mother's home, Strabane Old Road, Gobnascale, Derry. |
| 16 May 1983 | Gerald Cathcart (49) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Off duty. Shot outside his home, Linkview Park, Malone, Belfast. |
| 26 May 1983 | Colin Carson (31) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish National Liberation Army (INLA) Shot outside Cookstown Royal Ulster Constabulary (RUC) base, County Tyrone. |
| 26 May 1983 | Trevor Close (33) Catholic Status: Civilian (Civ), Killed by: Ulster Volunteer Force (UVF) Shot while delivering milk, Elimgrove Street, off Cliftonville Road, Belfast. |
| 04 June 1983 | Andrew Stinson (35) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish National Liberation Army (INLA) Off duty. Killed by booby trap bomb attached to mechanical digger in field, Eglish, near Dungannon, County Tyrone. |
| 10 June 1983 | Geoffrey Curtis (20) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Killed by remote controlled bomb, hidden in lamp post, detonated when British Army (BA) foot patrol passed, Glenalina Road, Ballymurphy, Belfast. |
| 27 June 1983 | Malvern Moffatt (36) Protestant Status: Civilian (Civ), Killed by: non-specific Republican group (REP) Shot while cutting hedge, Drumnakilly, near Omagh, County Tyrone. |
| 13 July 1983 | Eamon McMahon (35) Catholic Status: Civilian (Civ), Killed by: Irish National Liberation Army (INLA) Found shot in his car, Glassdrumman, near Crossmaglen, County Armagh. |
| 13 July 1983 | Patrick Mackin (37) Catholic Status: Civilian (Civ), Killed by: Irish National Liberation Army (INLA) Found shot in Eamon McMahon's car, Glassdrumman, near Crossmaglen, County Armagh. |
| 13 July 1983 | Ronald Alexander (19) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Ulster Defence Regiment (UDR) mobile patrol, near Ballygawley, County Tyrone. |
| 13 July 1983 | John Roxborough (19) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Ulster Defence Regiment (UDR) mobile patrol, near Ballygawley, County Tyrone. |
| 13 July 1983 | Oswell Neely (20) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Ulster Defence Regiment (UDR) mobile patrol, near Ballygawley, County Tyrone. |
| 13 July 1983 | Thomas Harron (25) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Killed in land mine attack on Ulster Defence Regiment (UDR) mobile patrol, near Ballygawley, County Tyrone. |
| 26 July 1983 | John O'Hare (25) Catholic Status: Civilian (Civ), Killed by: Royal Ulster Constabulary (RUC) Shot while running away after armed robbery at Taughnevin Post Office, Craigavon, County Armagh. |
| 30 July 1983 | Martin Malone (18) Catholic Status: Civilian (Civ), Killed by: Ulster Defence Regiment (UDR) Shot during altercation between local people and Ulster Defence Regiment (UDR) foot patrol, Callan Terrace, Armagh. |
| 30 July 1983 | Mark Kinghan (19) Protestant Status: Civilian (Civ), Killed by: not known (nk) Died eight days after being hit on head by brick thrown during street disturbances at junction of Whitewell Road and Shore Road, Greencastle, Belfast. |
| 09 August 1983 | Thomas Reilly (22) Catholic Status: Civilian (Civ), Killed by: British Army (BA) Shot during altercation between local people and British Army (BA) foot patrol, Whiterock Road, Ballymurphy, Belfast. |
| 13 August 1983 | Brendan Convery (25) Catholic Status: Irish National Liberation Army (INLA), Killed by: Royal Ulster Constabulary (RUC) Shot during attempted ambush of Royal Ulster Constabulary (RUC) members at security barrier, Dungannon, County Tyrone. |
| 13 August 1983 | James Mallon (28) Catholic Status: Irish National Liberation Army (INLA), Killed by: Royal Ulster Constabulary (RUC) Shot during attempted ambush of Royal Ulster Constabulary (RUC) members at security barrier, Dungannon, County Tyrone. |
| 23 August 1983 | Ronald Finlay (32) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot as he left his workplace, Strabane, County Tyrone. |
| 24 August 1983 | William Young (52) Protestant Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot at his shop, Magazine Street, Derry. Altercation with Irish Republican Army (IRA) unit. |
| 06 September 1983 | John Wasson (61) Catholic Status: Royal Ulster Constabulary (RUC), Killed by: Irish National Liberation Army (INLA) Off duty. Shot outside his home, Dukes Grove, off Cathedral Road, Armagh. |
| 19 September 1983 | Lilly McCollum (61) Protestant Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Died two months after being injured by a booby trap bomb, hidden in outbuilding at her Ulster Defence Regiment (UDR) member brother's farm, Tullylagen, near Cookstown, County Tyrone. She was injured on 9 July 1983. |
| 20 September 1983 | John Truckle (61) Protestant Status: ex-Ulster Defence Regiment (xUDR), Killed by: Irish Republican Army (IRA) Killed by booby trap bomb attached to his car outside his home, Woodside Hill, Portadown, County Armagh. |
| 06 October 1983 | William Finlay (55) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Shot while on Royal Ulster Constabulary (RUC) foot patrol, Meadowlands, Downpatrick, County Down. |
| 06 October 1983 | James Ferguson (53) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Shot while on Royal Ulster Constabulary (RUC) foot patrol, Meadowlands, Downpatrick, County Down. |
| 10 October 1983 | Sean McShane (39) Catholic Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Shot while in bookmaker's shop, Monaghan Street, Newry, County Down. Off-duty Royal Ulster Constabulary (RUC) member intended target. |
| 15 October 1983 | Alan Stock (22) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Killed by remote controlled bomb hidden in wall while on British Army (BA) mobile patrol, Lone Moor Road, Creggan, Derry. |
| 24 October 1983 | Cyrus Campbell (49) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot while driving car at his farm, Carricklongfield, near Aughnacloy, County Tyrone. |
| 26 October 1983 | Gerard Barkley (27) Catholic Status: Irish National Liberation Army (INLA), Killed by: Irish National Liberation Army (INLA) Found shot near Redhills, County Cavan. Alleged informer. |
| 28 October 1983 | John Hallawell (35) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Shot shortly after leaving house, Sheelin Park, Ballymagroarty, Derry. |
| 29 October 1983 | David Nocher (26) Catholic Status: Civilian Political Activist (CivPA), Killed by: Protestant Action Force (PAF) Workers' Party member. Shot while cleaning shop window, Mill Road, Greencastle, Belfast. |
| 04 November 1983 | John Martin (28) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed by time bomb, hidden in ceiling of classroom, which exploded during lecture to Royal Ulster Constabulary (RUC) members, Ulster Polytechnic, Jordanstown, County Antrim. |
| 04 November 1983 | Stephen Fyfe (28) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed by time bomb, hidden in ceiling of classroom, which exploded during lecture to Royal Ulster Constabulary (RUC) members, Ulster Polytechnic, Jordanstown, County Antrim. |
| 04 November 1983 | William McDonald (29) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Injured by time bomb, hidden in ceiling of classroom, which exploded during lecture to Royal Ulster Constabulary (RUC) members, Ulster Polytechnic, Jordanstown, County Antrim. He died 12th August 1984. |
| 05 November 1983 | John McFadden (50) Protestant Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Off duty. Shot outside his home, Bamford Park, Rasharkin, County Antrim. |
| 07 November 1983 | Stephen Taverner (24) nfNI Status: British Army (BA), Killed by: Irish Republican Army (IRA) Died two weeks after being injured by remote controlled bomb while on British Army (BA) foot patrol, Crossmaglen, County Armagh. |
| 08 November 1983 | Adrian Carroll (24) Catholic Status: Civilian (Civ), Killed by: Protestant Action Force (PAF) Shot outside his home, Abbey Street, Armagh. |
| 10 November 1983 | William Fitzpatrick (46) Catholic Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Off duty. Shot at his home, Ballymartin, near Annalong, County Down. |
| 12 November 1983 | Paul Clarke (29) Catholic Status: Royal Ulster Constabulary (RUC), Killed by: Irish Republican Army (IRA) Killed in mortar bomb attack on Carrickmore British Army (BA) / Royal Ulster Constabulary (RUC) base, County Tyrone. |
| 14 November 1983 | Charles Armstrong (54) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Also Ulster Unionist Party Councillor. Killed by booby trap bomb attached to his car, outside District Council offices, Armagh. |
| 20 November 1983 | David Wilson (44) Protestant Status: Civilian (Civ), Killed by: Catholic Reaction Force (CRF) Shot in the entrance hall to Mountain Lodge Pentecostal Church, Darkley, near Keady, County Armagh. |
| 20 November 1983 | Harold Brown (59) Protestant Status: Civilian (Civ), Killed by: Catholic Reaction Force (CRF) Shot in the entrance hall to Mountain Lodge Pentecostal Church, Darkley, near Keady, County Armagh. |
| 20 November 1983 | Victor Cunningham (39) Protestant Status: Civilian (Civ), Killed by: Catholic Reaction Force (CRF) Shot in the entrance hall to Mountain Lodge Pentecostal Church, Darkley, near Keady, County Armagh. |
| 25 November 1983 | Daniel Rouse (51) Catholic Status: Civilian (Civ), Killed by: non-specific Loyalist group (LOY) Beaten to death, while walking along Old Portadown Road, Lurgan, County Armagh. |
| 28 November 1983 | Brigid Foster (77) Catholic Status: Civilian (Civ), Killed by: Royal Ulster Constabulary (RUC) Passerby. Shot shortly after armed robbery at Post Office, Pomeroy, County Tyrone. |
| 04 December 1983 | Colm McGirr (23) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Shot by undercover British Army (BA) members, while walking across field towards arms cache, off Cloghog Road, near Coalisland, County Tyrone. |
| 04 December 1983 | Brian Campbell (19) Catholic Status: Irish Republican Army (IRA), Killed by: British Army (BA) Shot by undercover British Army (BA) members, while walking across field towards arms cache, off Cloghog Road, near Coalisland, County Tyrone. |
| 05 December 1983 | Joseph Craven (26) Catholic Status: Irish National Liberation Army (INLA), Killed by: Protestant Action Force (PAF) Shot from passing motorcycle shortly after leaving Department of Health and Social Services office, Church Road, Newtownabbey, County Antrim. |
| 07 December 1983 | Edgar Graham (29) Protestant Status: Civilian Political Activist (CivPA), Killed by: Irish Republican Army (IRA) Ulster Unionist Party Assembly member. Shot outside his workplace, Queen's University, University Square, Belfast. |
| 12 December 1983 | Anthony Dawson (18) Catholic Status: Civilian (Civ), Killed by: Royal Ulster Constabulary (RUC) Shot by off duty Royal Ulster Constabulary (RUC) member from passing car while standing in Mountpottinger Road, Short Strand, Belfast. |
| 12 December 1983 | John Molloy (20) Protestant Status: Civilian (Civ), Killed by: non-specific Loyalist group (LOY) Shot at his home, Tyndale Gardens, Ballysillan, Belfast. |
| 16 December 1983 | Gary Sheehan (23) nfNIRI Status: Garda Siochana (GS), Killed by: Irish Republican Army (IRA) Shot during gun battle between the Irish Republican Army (IRA) and Irish forces, at the release of kidnap victim Don Tidey, near Ballinamore, County Leitrim. |
| 16 December 1983 | Patrick Kelly (35) nfNIRI Status: Irish Army (IA), Killed by: Irish Republican Army (IRA) Shot during gun battle between the Irish Republican Army (IRA) and Irish forces, at the release of kidnap victim Don Tidey, near Ballinamore, County Leitrim. |
| 17 December 1983 | Brown McKeown (40) Protestant Status: Ulster Defence Regiment (UDR), Killed by: Irish Republican Army (IRA) Off duty. Shot at his workplace, shop, Maghera, County Derry. |
| 17 December 1983 | Noel Lane (28) nfNIB Status: British Police (BP), Killed by: Irish Republican Army (IRA) Killed by car bomb which exploded outside Harrod's Department Store, Brompton Road, Knightsbridge, London. Inadequate warning given. |
| 17 December 1983 | Jane Arbuthnot (22) nfNIB Status: British Police (BP), Killed by: Irish Republican Army (IRA) Killed by car bomb which exploded outside Harrod's Department Store, Brompton Road, Knightsbridge, London. Inadequate warning given. |
| 17 December 1983 | Philip Geddes (24) nfNIB Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Killed by car bomb which exploded outside Harrod's Department Store, Brompton Road, Knightsbridge, London. Inadequate warning given. |
| 17 December 1983 | Kenneth Salvesan (28) nfNIB Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Killed by car bomb which exploded outside Harrod's Department Store, Brompton Road, Knightsbridge, London. Inadequate warning given. |
| 17 December 1983 | Jasmine Cochrane-Patrick (25) nfNIB Status: Civilian (Civ), Killed by: Irish Republican Army (IRA) Killed by car bomb which exploded outside Harrod's Department StoreBrompton Road, Knightsbridge, London. Inadequate warning given. |
| 17 December 1983 | Stephen Dodd (34) nfNIB Status: British Police (BP), Killed by: Irish Republican Army (IRA) Injured by car bomb which exploded outside Harrod's Department Store, Brompton Road, Knightsbridge, London. Inadequate warning given. He died 24 December 1983. |