54°20′53″N 6°39′22″W / 54.348°N 6.656°W / 54.348; -6.656 Armagh was a constituency used for the Northern Ireland Assembly.

The seat was first used for a Northern Ireland-only election for the Northern Ireland Assembly, 1973. Members were then elected from the constituency to the 1975 Constitutional Convention and the 1982 Assembly. After the Assembly dissolved in 1986, the constituency was not used again, its area being represented by parts of Newry and Armagh and Upper Bann.

It usually shared boundaries with the Armagh UK Parliament constituency, however the boundaries of the two constituencies were slightly different from 1983 to 1986 as the Assembly boundaries had not caught up with Parliamentary boundary changes.

For further details of the history and boundaries of the constituency, see Armagh (UK Parliament constituency).

Election	MLA (Party)		MLA (Party)		MLA (Party)		MLA (Party)		MLA (Party)		MLA (Party)		MLA (Party)
1973		Hugh News (SDLP)		Seamus Mallon (SDLP)		Paddy O'Hanlon (SDLP)		Herbert Whitten (UUP)		James Stronge (UUP)		Thomas Carson (Vanguard)		Douglas Hutchinson (DUP)
1975						Michael Armstrong (UUP)				Alistair Black (Vanguard)
1982						Jim McAllister (Sinn Féin)		Mary Simpson (UUP)		Jim Nicholson (UUP)		Harold McCusker (UUP)		David Calvert (DUP)
1983 by-election				Jim Speers (UUP)

Note: The columns in this table are used only for presentational purposes, and no significance should be attached to the order of columns. For details of the order in which seats were won at each election, see the detailed results of that election.

1983 by-election: Armagh – 1 seat

Party		Candidate	FPv%	Count
				1
	UUP	Jim Speers	84.5	26,907
	Workers' Party	Tom French	15.5	4,920
Electorate: 95,100   Valid: 31,827   Spoilt: 0   Quota: 15,914   Turnout: 31,827 (34.07%)

1982 Assembly election: Armagh – 7 seats

Party		Candidate	FPv%	Count
				1	2	3	4	5	6	7	8	9	10	11	12	13	14
	UUP	Harold McCusker	31.58%	19,547
	SDLP	Seamus Mallon	13.78%	8,528
	UUP	Jim Nicholson	4.18%	2,590	7,155.4	7,156.39	7,384.79	7,472.99	7,472.99	8,137.39
	Sinn Féin	Jim McAllister	8.37%	5,182	5,188.6	5,230.81	5,247.06	5,248.06	7,717.11	7,720.11	7,721.11	8,090.61
	UUP	Mary Simpson	1.16%	721	3,838	3,838.18	4,147.38	4,360.18	4,361.47	4,857.07	5,126.57	5,220.57	5,221.45	8,212.94
	DUP	David Calvert	4.30%	2,661	3,110.4	3,110.4	3,124.8	3,873.6	3,873.6	4,845.6	4,868.6	4,887.8	4,887.8	5,135.9	5,310.32	9,459.68
	SDLP	Hugh News	4.64%	2,871	2,883	3,256.77	3,578.05	3,580.05	3,778.44	3,781.44	3,781.44	5,460.43	5,566.91	5,570.11	5,571.01	5,576.58	5,607.18
	SDLP	Paddy O'Hanlon	6.84%	4,231	4,239.4	4,501.75	4,688.94	4,691.63	4,799.17	4,800.17	4,801.17	5,199.69	5,245.45	5,252.51	5,254.67	5,255.27	5,288.87
	DUP	Douglas Hutchinson	3.77%	2,333	2,894	2,894.27	2,915.36	3,630.56	3,631.63	4,238.45	4,259.95	4,276.15	4,277.91	4,741.51	5,016.91
	UUP	Jim Speers	2.97%	1,836	3,438	3,438.45	3,538.72	3,623.32	3,625.1	3,858.5	3,953	3,981.6	3,982.48
	Workers' Party	Tom French	4.57%	2,826	2,850.6	2,872.02	3,270.19	3,272.88	3,470.41	3,494.21	3,494.71
	UUUP	Alistair Black	3.25%	2,014	2,873.8	2,873.98	2,941.78	3,096.38	3,096.98
	Sinn Féin	Jim O'Hagan	4.91%	3,042	3,049.2	3,072.42	3,088.87	3,088.87
	DUP	Woolsey Smith	2.77%	1,716	2,028	2,028.18	2,039.38
	Alliance	William Jeffrey	2.92%	1,806	1,942.2	1,958.04
Electorate: 95,610   Valid: 61,904 (64.75%)   Spoilt: 2,078   Quota: 7,739   Turnout: 63,982 (66.92%)

1975 Constitutional Convention: Armagh – 7 seats

Party		Candidate	FPv%	Count
				1	2	3	4	5	6	7	8	9
	SDLP	Seamus Mallon	15.15%	8,999
	UUP	Michael Armstrong	14.82%	8,802
	DUP	Douglas Hutchinson	13.04%	7,746
	UUP	Herbert Whitten	8.15%	4,843	4,843.68	5,198.13	5,240.93	5,242.93	5,276.1	5,381.45	5,383.64	7,021.28
	Vanguard	Thomas Carson	10.06%	5,974	5,974.17	6,225.57	6,367.29	6,371.29	6,388.17	6,439.62	6,448.83	6,885.85
	Vanguard	Alistair Black	9.15%	5,435	5,435	6,064.7	6,180.18	6,188.22	6,213.99	6,283.98	6,287.17	6,789.62
	SDLP	Hugh News	5.56%	3,303	4,261.12	4,261.87	4,261.91	4,327.43	4,375	5,074.49	6,140.54	6,457.05
	SDLP	Paddy O'Hanlon	7.93%	4,710	5,095.22	5,095.22	5,095.26	5,190.25	5,206.16	5,678.08	6,243.37	6,361.22
	Unionist Party NI	John Maginnis	4.71%	2,797	2,798.53	2,860.48	2,867.16	2,870.46	3,002.02	3,838.8	3,856.14
	Republican Clubs	Malachy McGurran	4.34%	2,577	2,650.1	2,650.55	2,650.71	3,587.51	3,602.36	3,761.35
	Alliance	Eugene Connolly	2.93%	1,742	1,781.44	1,787.74	1,788.14	1,806.09	2,828.98
	Alliance	Brian English	2.20%	1,307	1,318.05	1,327.65	1,328.41	1,332.28
	Republican Clubs	Patrick Houlahan	1.04%	617	636.38	636.98	637.18
	Republican Clubs	Thomas Moore	0.90%	536	546.2	546.2	546.2
Electorate: 90,640   Valid: 59,388 (65.52%)   Spoilt: 2,011   Quota: 7,424   Turnout: 61,399 (67.74%)

1973 Assembly election: Armagh – 7 seats

Party		Candidate	FPv%	Count
				1	2	3	4	5	6	7	8	9	10	11	12
	SDLP	Paddy O'Hanlon	13.39%	8,219
	SDLP	Seamus Mallon	13.02%	7,995
	UUP	Herbert Whitten	11.22%	6,891	6,891.24	7,127.3	7,127.58	7,208.62	7,284.62	8,140.62
	Vanguard	Thomas Carson	11.18%	6,866	6,866.66	6,936.66	6,936.74	6,955.86	7,432.86	7,505.86	7,810.86
	UUP	James Stronge	7.06%	4,335	4,336.44	4,458.56	4,458.72	4,524.72	4,537.78	5,235.84	5,383.84	5,526.94	8,693.94
	SDLP	Hugh News	7.71%	4,731	5,163.3	5,278.48	5,564.96	5,670.04	5,672.08	5,677.18	5,677.18	5,677.73	5,688.79	5,691.03	7,832.03
	DUP	Douglas Hutchinson	7.41%	4,552	4,552.12	4,598.18	4,598.5	4,612.5	4,821.5	4,902.56	6,620.56	6,644.76	6,887.4	7,237.4	7,431.4
	Vanguard	Frederick Crowe	4.01%	2,465	2,465.12	2,492.12	2,492.24	2,503.28	3,639.34	3,689.34	4,168.34	4,190.89	4,447.37	4,904.33	5,093.33
	Alliance	Eugene Connolly	4.19%	2,572	2,589.7	2,763.38	2,780.06	4,268.62	4,275.72	4,292.72	4,302.72	4,304.37	4,329.3	4,630.34
	UUP	Alexander Greer	4.28%	2,630	2,630.36	2,689.42	2,689.56	2,762.6	2,771.66	3,603.8	3,697.8	3,869.95
	DUP	Thomas Willey	4.26%	2,616	2,616	2,639.06	2,639.14	2,642.14	2,726.14	2,773.14
	UUP	Robert James Mitchell	4.19%	2,571	2,571.42	2,625.48	2,625.84	2,653.84	2,673.64
	Vanguard	Samuel McCammick	3.29%	2,018	2,018.3	2,034.36	2,034.48	2,040.52
	Alliance	Howard McNally	2.67%	1,637	1,642.58	1,940.6	1,945.54
	NI Labour	Thomas Newell	1.70%	1,044	1,053.9
	Independent	Robert Murphy	0.39%	238	244
Electorate: 89,056   Valid: 61,400 (68.95%)   Spoilt: 1,955   Quota: 7,676   Turnout: 63,355 (71.14%)